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CVE-2015-8677

17
FAUCET Score

CVE-2015-8677 describes a memory leak vulnerability in various Huawei S-series Campus switches, including S5300, S2350, S9300, and S5720 models running specific software versions. This flaw allows remote authenticated users to trigger a denial of service (DoS) by repeatedly logging in and out of the HTTPS or SFTP server, leading to memory exhaustion and device restarts due to unreleased SSL session information. The vulnerability carries a CVSS v3.0 score of 6.5 (Medium), indicating that an attacker with low privileges can exploit it over the network with low attack complexity, resulting in high availability impact. There is no impact on confidentiality or integrity. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE. Its EPSS score is very low, suggesting a minimal likelihood of exploitation in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
>= v200r003c00, < v200r003sph011CPE matchmatch criteria
cpe:2.3:o:huawei:s5300ei_firmware:*:*:*:*:*:*:*:*
>= v200r005c00, < v200r005sph008CPE matchmatch criteria
cpe:2.3:o:huawei:s5300ei_firmware:*:*:*:*:*:*:*:*
>= v200r001c00, < v200r001sph018CPE matchmatch criteria
cpe:2.3:o:huawei:s5300si_firmware:*:*:*:*:*:*:*:*
>= v200r002c00, < v200r003sph011CPE matchmatch criteria
cpe:2.3:o:huawei:s5300si_firmware:*:*:*:*:*:*:*:*
>= v200r001c00, < v200r001sph018CPE matchmatch criteria
cpe:2.3:o:huawei:s5310hi_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.11%
Probability of exploitation in next 30 days
EPSS Percentile
62.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0111 is in the 76th percentile among its peer group of 21,974 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

huawei.com / en/psirt/security-advisories/huawei-sa-20160113-03-switch-en
Vendor Advisory