CVE-2015-8949

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

Use-after-free vulnerability in the my_login function in DBD::mysql before 4.033_01 allows attackers to have unspecified impact by leveraging a call to mysql_errno after a failure of my_login.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation4% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
91%
KEV
Not listed

Published

August 19, 2016

Last Modified

June 17, 2026

Advisory Details (9)

Auto-updated Sep 16, 2026
Patch available. Sources: github_commit, github_pr.
generic

[SECURITY] [DSA 3635-1] libdbd-mysql-perl security update

http://www.debian.org/security/2016/dsa-3635
generic

DBD::mysql: Multiple vulnerabilities (GLSA 201701-51) — Gentoo security

https://security.gentoo.org/glsa/201701-51
github_pr

Fix use after free error.

Fix merged in perl5-dbi/DBD-mysql PR #45 on 2015-11-22 — awaiting tagged release

https://github.com/perl5-dbi/DBD-mysql/pull/45
github_commit Patch Available

commit cf0aa7751f6e (perl5-dbi/DBD-mysql)

Patch available: perl5-dbi/DBD-mysql 4_051 (contains commit cf0aa7751f6e)

https://github.com/perl5-dbi/DBD-mysql/commit/cf0aa7751f6ef8445e9310a64b14dc81460ca156
generic

DBD-mysql/Changes at 4.033_01 · perl5-dbi/DBD-mysql · GitHub

https://github.com/perl5-dbi/DBD-mysql/blob/4.033_01/Changes
generic Patch Available

Use after free in my_login() function of DBD::mysql (Perl module) | The Fuzzing Project

https://blog.fuzzing-project.org/50-Use-after-free-in-my_login-function-of-DBDmysql-Perl-module.html
generic

CVE-2015-8949 - PSIRT.COM

http://www.securityfocus.com/bid/92118
generic Patch Available

oss-security - Re: Use after free in my_login() function of DBD::mysql (Perl module)

http://www.openwall.com/lists/oss-security/2016/07/27/1
generic Patch Available

oss-security - Use after free in my_login() function of DBD::mysql (Perl module)

http://www.openwall.com/lists/oss-security/2016/07/25/13

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibdbd-mysql-perl (4.020-1ubuntu0.1) @ precise2026-05-20ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(6 across 6 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libdbd-mysql-perl—4.035-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libdbd-mysql-perl—4.035-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libdbd-mysql-perl—4.035-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libdbd-mysql-perl—4.035-1—
Debian:7(1)
PackageVulnerable rangeFixed inDependents
libdbd-mysql-perl4.021-14.021-1+deb7u1—
Debian:8(1)
PackageVulnerable rangeFixed inDependents
libdbd-mysql-perl4.028-24.028-2+deb8u1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 21× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 162 total refreshes for this CVE.

  1. 2026-09-19 15:35 UTCEPSS rescore
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  4. 2026-09-15 03:44 UTCOSV refresh
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  20. 2026-07-23 01:20 UTCEG score recompute
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  23. 2026-07-22 14:04 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2015-8949?
CVE-2015-8949 is a critical vulnerability published on August 19, 2016. Use-after-free vulnerability in the mylogin function in DBD::mysql before 4.03301 allows attackers to have unspecified impact by leveraging a call to mysqlerrno after a failure of mylogin.
When was CVE-2015-8949 disclosed?
CVE-2015-8949 was first published in the National Vulnerability Database on August 19, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-8949 actively exploited?
CVE-2015-8949 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 9.0% of all scored CVEs.
What is the CVSS score of CVE-2015-8949?
CVE-2015-8949 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2015-8949?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-8949, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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