CVE-2015-8677 Vulnerability Analysis & Exploit Details

CVE-2015-8677
Vulnerability Scoring

6.5
/10
High Risk

If left unpatched, CVE-2015-8677 could lead to major system disruptions or data loss.

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: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2015-8677 Details

Status: Deferred

Last updated: 🕥 12 Apr 2025, 10:46 UTC
Originally published on: 🕞 14 Apr 2016, 15:59 UTC

Time between publication and last update: 3284 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2015-8677 Vulnerability Summary

CVE-2015-8677: Memory leak in Huawei S5300EI, S5300SI, S5310HI, and S6300EI Campus series switches with software V200R003C00 before V200R003SPH011 and V200R005C00 before V200R005SPH008; S2350EI and S5300LI Campus series switches with software V200R003C00 before V200R003SPH011, V200R005C00 before V200R005SPH008, and V200R006C00 before V200R006SPH002; S9300, S7700, and S9700 Campus series switches with software V200R003C00 before V200R003SPH011, V200R005C00 before V200R005SPH009, and V200R006C00 before V200R006SPH003; S5720HI and S5720EI Campus series switches with software V200R006C00 before V200R006SPH002; and S2300 and S3300 Campus series switches with software V100R006C05 before V100R006SPH022 allows remote authenticated users to cause a denial of service (memory consumption and device restart) by logging in and out of the (1) HTTPS or (2) SFTP server, related to SSL session information.

Assessing the Risk of CVE-2015-8677

Access Complexity Graph

The exploitability of CVE-2015-8677 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-2015-8677

CVE-2015-8677 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

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-2015-8677, 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-2015-8677, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2015-8677 has no significant impact on data confidentiality.
  • Integrity: None
    CVE-2015-8677 poses no threat to data integrity.
  • Availability: High
    CVE-2015-8677 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.121% (probability of exploit)

EPSS Percentile: 47.99% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 52.01% of others.

CVE-2015-8677 References

External References

CWE Common Weakness Enumeration

CWE-399

Vulnerable Configurations

  • cpe:2.3:o:huawei:s5300ei_firmware:v200r003c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300ei_firmware:v200r003c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300ei_firmware:v200r003c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300ei_firmware:v200r003c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300ei_firmware:v200r005c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300ei_firmware:v200r005c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300ei_firmware:v200r005c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300ei_firmware:v200r005c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s5300ei:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s5300ei:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300si_firmware:v200r001c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300si_firmware:v200r001c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300si_firmware:v200r001c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300si_firmware:v200r001c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300si_firmware:v200r002c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300si_firmware:v200r002c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300si_firmware:v200r002c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300si_firmware:v200r002c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300si_firmware:v200r003c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300si_firmware:v200r003c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300si_firmware:v200r003c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300si_firmware:v200r003c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s5300si:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s5300si:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5310hi_firmware:v200r001c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5310hi_firmware:v200r001c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5310hi_firmware:v200r002c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5310hi_firmware:v200r002c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5310hi_firmware:v200r003c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5310hi_firmware:v200r003c00:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s5310hi:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s5310hi:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s6300ei_firmware:v200r001c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s6300ei_firmware:v200r001c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s6300ei_firmware:v200r001c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s6300ei_firmware:v200r001c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s6300ei_firmware:v200r002c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s6300ei_firmware:v200r002c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s6300ei_firmware:v200r002c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s6300ei_firmware:v200r002c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s6300ei_firmware:v200r003c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s6300ei_firmware:v200r003c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s6300ei_firmware:v200r003c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s6300ei_firmware:v200r003c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s6300ei:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s6300ei:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300li_firmware:v200r003c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300li_firmware:v200r003c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300li_firmware:v200r003c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300li_firmware:v200r003c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300li_firmware:v200r005c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300li_firmware:v200r005c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300li_firmware:v200r005c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300li_firmware:v200r005c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300li_firmware:v200r006c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300li_firmware:v200r006c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5300li_firmware:v200r006c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5300li_firmware:v200r006c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s5300li:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s5300li:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s2350ei_firmware:v200r003c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s2350ei_firmware:v200r003c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s2350ei_firmware:v200r003c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s2350ei_firmware:v200r003c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s2350ei_firmware:v200r005c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s2350ei_firmware:v200r005c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s2350ei_firmware:v200r005c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s2350ei_firmware:v200r005c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s2350ei_firmware:v200r006c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s2350ei_firmware:v200r006c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s2350ei_firmware:v200r006c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s2350ei_firmware:v200r006c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s2350ei:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s2350ei:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9300_firmware:v200r003c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9300_firmware:v200r003c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9300_firmware:v200r003c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9300_firmware:v200r003c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9300_firmware:v200r005c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9300_firmware:v200r005c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9300_firmware:v200r005c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9300_firmware:v200r005c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9300_firmware:v200r006c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9300_firmware:v200r006c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9300_firmware:v200r006c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9300_firmware:v200r006c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9300_firmware:v200r006c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9300_firmware:v200r006c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s9300:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s9300:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r003c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r003c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r003c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r003c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r003c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r003c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r005c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r005c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r005c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r005c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r005c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r005c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r006c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r006c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r006c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r006c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r006c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r006c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s9700_firmware:v200r006c01:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s9700_firmware:v200r006c01:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s9700:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s9700:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r003c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r003c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r003c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r003c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r003c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r003c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r005c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r005c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r005c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r005c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r005c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r005c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r006c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r006c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r006c00spc300:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r006c00spc300:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r006c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r006c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s7700_firmware:v200r006c01:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s7700_firmware:v200r006c01:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s7700:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s7700:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5720hi_firmware:v200r006c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5720hi_firmware:v200r006c00:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5720hi_firmware:v200r006c00spc500:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5720hi_firmware:v200r006c00spc500:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s5720hi:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s5720hi:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s5720ei_firmware:v200r006c00:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s5720ei_firmware:v200r006c00:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s5720ei:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s5720ei:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s2300_firmware:v100r006c05:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s2300_firmware:v100r006c05:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s2300:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s2300:-:*:*:*:*:*:*:*
  • cpe:2.3:o:huawei:s3300_firmware:v100r006c05:*:*:*:*:*:*:*
    cpe:2.3:o:huawei:s3300_firmware:v100r006c05:*:*:*:*:*:*:*
  • cpe:2.3:h:huawei:s3300:-:*:*:*:*:*:*:*
    cpe:2.3:h:huawei:s3300:-:*:*:*:*:*:*:*

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