CVE-2023-53083 Vulnerability Analysis & Exploit Details

CVE-2023-53083
Vulnerability Scoring

9.8
/10
Critical Risk

As a catastrophic security flaw, CVE-2023-53083 has severe implications, demanding immediate intervention.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2023-53083 Details

Status: Modified

Last updated: 🕙 04 Aug 2026, 10:18 UTC
Originally published on: 🕓 02 May 2025, 16:15 UTC

Time between publication and last update: 458 days

CVSS Release: version 3

CVSS3 Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2023-53083 Vulnerability Summary

CVE-2023-53083: In the Linux kernel, the following vulnerability has been resolved: nfsd: don't replace page in rq_pages if it's a continuation of last page The splice read calls nfsd_splice_actor to put the pages containing file data into the svc_rqst->rq_pages array. It's possible however to get a splice result that only has a partial page at the end, if (e.g.) the filesystem hands back a short read that doesn't cover the whole page. nfsd_splice_actor will plop the partial page into its rq_pages array and return. Then later, when nfsd_splice_actor is called again, the remainder of the page may end up being filled out. At this point, nfsd_splice_actor will put the page into the array _again_ corrupting the reply. If this is done enough times, rq_next_page will overrun the array and corrupt the trailing fields -- the rq_respages and rq_next_page pointers themselves. If we've already added the page to the array in the last pass, don't add it to the array a second time when dealing with a splice continuation. This was originally handled properly in nfsd_splice_actor, but commit 91e23b1c3982 ("NFSD: Clean up nfsd_splice_actor()") removed the check for it.

Assessing the Risk of CVE-2023-53083

Access Complexity Graph

The exploitability of CVE-2023-53083 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2023-53083

With low attack complexity and no required privileges, CVE-2023-53083 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2023-53083, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2023-53083, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2023-53083 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2023-53083 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2023-53083 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2023-53083 References

External References

CWE Common Weakness Enumeration

NVD-CWE-noinfo

Vulnerable Configurations

  • cpe:2.3:o:linux:linux_kernel:5.19:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.5:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.5:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.9:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.9:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.10:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.10:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.11:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.12:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.12:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.13:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.13:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.14:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.14:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.15:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.15:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.16:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.16:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19.17:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19.17:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc7:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19:rc7:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc8:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.19:rc8:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.5:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.5:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.9:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.9:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.10:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.10:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.11:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.12:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.12:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.13:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.13:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.14:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.14:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.15:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.15:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.16:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.16:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.17:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.17:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.18:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.18:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0.19:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0.19:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc7:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.0:rc7:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.5:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.5:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.9:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.9:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.10:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.10:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.11:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.12:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.12:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.13:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.13:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.14:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.14:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.15:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.15:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.16:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.16:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.17:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.17:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.18:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.18:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.19:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.19:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.20:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.20:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1.21:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.1.21:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.0:rc3:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.0:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.0:rc4:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.0:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.0:rc5:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.0:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.0:rc6:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.0:rc6:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.5:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.5:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.2.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.2.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:*

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