CVE-2026-80901
Vulnerability Scoring
Analysis In Progress
CVE-2026-80901 Vulnerability Analysis & Exploit Details
CVE-2026-80901
Attack Complexity Details
-
Attack Complexity:
Attack Complexity Analysis In Progress
-
Attack Vector:
Attack Vector Under Analysis
-
Privileges Required:
None
No authentication is required for exploitation.
-
Scope:
Impact is confined to the initially vulnerable component.
-
User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2026-80901 Details
Status: Received on 04 Sep 2026, 18:17 UTC
Published on: 04 Sep 2026, 18:17 UTC
CVSS Release:
CVE-2026-80901 Vulnerability Summary
CVE-2026-80901: In the Linux kernel, the following vulnerability has been resolved: ipvs: fix the checksum validations ip_vs_in_icmp_v6() is missing checksum validation for ICMPv6 packets from clients. In fact, as for TCP/UDP we should validate the checksum for ICMP packets only when we mangle the packets on MASQ or on reply for tunnel. Also, Sashiko points out that handle_response_icmp() being common for IPv4 and IPv6 is missing the pseudo-header calculation while validating ICMPv6 messages from real servers which is a problem if checksum is not validated by the hardware. Fix the problems by creating ip_vs_checksum_common_check() helper and use it for TCP/UDP/ICMP both for IPv4 and IPv6. Rely on the nf_checksum() for validating the ICMP messages but use it also for TCP and UDP. Use correct IP offset for IP_VS_DBG_RL_PKT for TCP/UDP/SCTP. IPVS packets (TCP/UDP/SCTP/ICMP) do not need checksum validation on LOCAL_OUT (local clients or local real servers) and on FORWARD (traffic from servers on LAN). Do it only on LOCAL_IN, in case nf_checksum() is not called on PRE_ROUTING. Also, ip_vs_checksum_complete() can be marked static.
Assessing the Risk of CVE-2026-80901
Access Complexity Graph
The exploitability of CVE-2026-80901 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-2026-80901
No exploitability data is available for CVE-2026-80901.
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-2026-80901, 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-2026-80901, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
-
Confidentiality:
None
CVE-2026-80901 does not compromise confidentiality.
-
Integrity:
None
CVE-2026-80901 does not impact data integrity.
-
Availability:
None
CVE-2026-80901 does not affect system availability.
CVE-2026-80901 References
External References
- https://git.kernel.org/stable/c/00eb23829fd08df1b5e057cb6b625996a70e7e65
- https://git.kernel.org/stable/c/5558a85add073215b298f3e044ff9a6d86d714ae
- https://git.kernel.org/stable/c/9cbe2c0fdb71904ee929b1851cdc1c73341a03c0
- https://git.kernel.org/stable/c/b3869d9b54e76dff64118dee4c8fd9302fcd5171
- https://git.kernel.org/stable/c/d418d73acf8be62744dc47359dfdde8c2148845d
- https://git.kernel.org/stable/c/e876b75b9020a97bbdc79721e7fc749024891c65
CWE Common Weakness Enumeration
Unknown
Protect Your Infrastructure against CVE-2026-80901: Combat Critical CVE Threats
Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.
Other 5 Recently Published CVEs Vulnerabilities
- CVE-2026-87919 – The Product XML Feed Manager for WooCommerce WordPress plugin before 3.1.1 does not restrict which object method its product shortcode may call, n...
- CVE-2026-87918 – The WPBot WordPress plugin before 8.5.7 does not perform any authorization or nonce check on several AJAX actions that relay prompts to its config...
- CVE-2026-87916 – The WPBot WordPress plugin before 8.6.0 does not perform any capability or nonce check on the AJAX action that lists stored chat sessions, allowin...
- CVE-2026-87894 – The Rox Appointment Booking WordPress plugin before 1.2.3 does not perform any authorization check on the endpoint that returns a booking's confir...
- CVE-2026-87892 – The Rox Appointment Booking WordPress plugin before 1.2.0 does not verify the order total or the selected payment method against its own server-si...