CVE-2015-8949

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.

Published: 2016-08-19 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-8949 is rated High Risk (65.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.92%). High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-8949

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 8.06% 3.92% -4.13%
2 2025-03-29 3.92% 8.06% +4.13%
3 2025-03-17 — 3.92% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-8949

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2015-8949

OS Trackers for CVE-2015-8949

vendor priority summary link
debian not yet assigned CVE-2015-8949 not yet assigned priority: Debian including 1 source packages (libdbd-mysql-perl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-8949
gentoo normal CVE-2015-8949: 1 GLSA(s) (201701-51), 1 atom(s) (dev-perl/DBD-mysql); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-8949
redhat low — https://access.redhat.com/security/cve/CVE-2015-8949
suse medium CVE-2015-8949 severity moderate: SUSE including 1 source package names (perl-DBD-mysql), 3 product×package rows across 3 product lines (SUSE Linux Enterprise Server 11 SP1 for Teradata, SUSE Linux Enterprise Server 11 SP3 for Teradata, SUSE Linux Enterprise Server 12 SP1): Known Not Affected 3. https://www.suse.com/security/cve/CVE-2015-8949/
ubuntu medium CVE-2015-8949 medium priority: Ubuntu including 1 source packages (libdbd-mysql-perl), 5 status rows across 5 suites (precise, trusty, upstream, wily, xenial): released 4, ignored 1. https://ubuntu.com/security/CVE-2015-8949

Affected software / configurations for CVE-2015-8949

Vendor Product Version Raw CPE
dbd-mysql_project dbd-mysql 4.033 cpe:2.3:a:dbd-mysql_project:dbd-mysql:4.033:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

References for CVE-2015-8949

cvelogic Threat Intelligence