CVE-2014-4609

Exp

Integer overflow in the get_len function in libavutil/lzo.c in Libav before 0.8.13, 9.x before 9.14, and 10.x before 10.2 allows remote attackers to execute arbitrary code via a crafted Literal Run.

Published: 2020-01-14 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-4609 is rated High Exploit Risk (86/100): CVSS High severity, with high exploitation likelihood (EPSS 5.74%, 92th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +3.58% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2014-4609

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-4609

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 2026-06-15 2.15% 5.74% +3.58%
2 2026-03-04 1.33% 2.15% +0.82%
3 2026-03-01 — 1.33% —

Full EPSS history (39 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-4609

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
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.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2014-4609

OS Trackers for CVE-2014-4609

vendor priority summary link
gentoo normal CVE-2014-4609: 1 GLSA(s) (201502-08), 1 atom(s) (media-video/libav); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-4609
ubuntu medium CVE-2014-4609 medium priority: Ubuntu including 1 source packages (libav), 4 status rows across 4 suites (lucid, precise, trusty, upstream): released 3, DNE 1. https://ubuntu.com/security/CVE-2014-4609

Affected software / configurations for CVE-2014-4609

Vendor Product Version Raw CPE
libav libav < 0.8.13 cpe:2.3:a:libav:libav:*:*:*:*:*:*:*:*
libav libav >= 9.0, < 9.14 cpe:2.3:a:libav:libav:*:*:*:*:*:*:*:*
libav libav >= 10.0, < 10.2 cpe:2.3:a:libav:libav:*:*:*:*:*:*:*:*

References for CVE-2014-4609

cvelogic Threat Intelligence