GStreamer before 1.4.5, as used in Mozilla Firefox before 38.0, Firefox ESR 31.x before 31.7, and Thunderbird before 31.7 on Linux, allows remote attackers to cause a denial of service (buffer over-read and application crash) or possibly execute arbitrary code via crafted H.264 video data in an m4v file.
CVE-2015-0797
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.8 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 5.4% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 6.8MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 6.8(low)
- EG Risk
- 37(Track)EG Risk 37/100SSVC: 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 computedSeverity68% × 45%Exploitation5% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 5%
- EPSS %ILE
- 92%
- KEV
- Not listed
Published
May 14, 2015
Last Modified
May 6, 2026
References (28)
- security@mozillahttp://lists.opensuse.org/opensuse-security-announce/2015-05/msg00017.html
- security@mozillahttp://lists.opensuse.org/opensuse-security-announce/2015-05/msg00054.html
- security@mozillahttp://lists.opensuse.org/opensuse-security-announce/2015-06/msg00000.html
- security@mozillahttp://rhn.redhat.com/errata/RHSA-2015-0988.html
- security@mozillahttp://rhn.redhat.com/errata/RHSA-2015-1012.html
- security@mozillahttp://www.debian.org/security/2015/dsa-3225
- security@mozillahttp://www.debian.org/security/2015/dsa-3260
- security@mozillahttp://www.debian.org/security/2015/dsa-3264
- security@mozillahttp://www.mozilla.org/security/announce/2015/mfsa2015-47.html
- security@mozillahttp://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- security@mozillahttps://bugzilla.mozilla.org/show_bug.cgi?id=1080995
- security@mozillahttps://lists.debian.org/debian-lts-announce/2020/03/msg00038.html
- security@mozillahttps://security.gentoo.org/glsa/201512-07
- security@mozillahttps://www.mozilla.org/en-US/security/known-vulnerabilities/thunderbird/#thunderbird31.7
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00017.html
Vendor Advisories for CVE-2015-0797(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | firefox-0:38.0-3.ael7b_1 | 2015-05-12 | redhat |
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.
Data Freshness Timeline
(refreshed 10× in last 7d / 38× 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.
- 2026-07-26 13:53 UTCEG score recompute▲ 6.80
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- 2026-05-23 01:28 UTCVendor advisory
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Frequently asked(4)
What is CVE-2015-0797?
When was CVE-2015-0797 disclosed?
Is CVE-2015-0797 actively exploited?
How do I remediate CVE-2015-0797?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2015-0797
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