CVE-2018-9841

HIGHNVD 8.88.8—

8.8

The export function in libavfilter/vf_signature.c in FFmpeg through 3.4.2 allows remote attackers to cause a denial of service (out-of-array access) or possibly have unspecified other impact via a long filename.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 66.8%
KEV: Not listed

Published

April 7, 2018

Last Modified

November 21, 2024

References (4)

cve@mitrehttp://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=35eeff30caf34df835206f1c12bcf4b7c2bd6758
cve@mitrehttps://security.gentoo.org/glsa/202003-65
af854a3a-2127-422b-91ae-364da2661108http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=35eeff30caf34df835206f1c12bcf4b7c2bd6758
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202003-65

Weakness Classification(1)

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

CWE-125Out-of-bounds Read

Data Freshness Timeline

(refreshed 9× in last 7d / 18× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 09:30 UTCEG score recompute
2026-05-28 09:30 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-9841?

CVE-2018-9841 is a high vulnerability published on April 7, 2018. The export function in libavfilter/vf_signature.c in FFmpeg through 3.4.2 allows remote attackers to cause a denial of service (out-of-array access) or possibly have unspecified other impact via a long filename.

When was CVE-2018-9841 disclosed?

CVE-2018-9841 was first published in the National Vulnerability Database on April 7, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-9841 actively exploited?

CVE-2018-9841 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 66.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-9841?

CVE-2018-9841 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2018-9841?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-9841, 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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CVE-2018-9841

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-9841?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)