CVE-2020-28840

HIGHNVD 7.87.8—

7.8

Buffer Overflow vulnerability in jpgfile.c in Matthias-Wandel jhead version 3.04, allows local attackers to execute arbitrary code and cause a denial of service (DoS).

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 10.1%
KEV: Not listed

Published

August 11, 2023

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://bugs.launchpad.net/ubuntu/+source/jhead/+bug/1900820
cve@mitrehttps://github.com/F-ZhaoYang/jhead/security/advisories/GHSA-xh27-xwgj-gqw2
cve@mitrehttps://github.com/Matthias-Wandel/jhead/commit/4827ed31c226dc5ed93603bd649e0e387a1778da
cve@mitrehttps://github.com/Matthias-Wandel/jhead/issues/8
af854a3a-2127-422b-91ae-364da2661108https://bugs.launchpad.net/ubuntu/+source/jhead/+bug/1900820
af854a3a-2127-422b-91ae-364da2661108https://github.com/F-ZhaoYang/jhead/security/advisories/GHSA-xh27-xwgj-gqw2
af854a3a-2127-422b-91ae-364da2661108https://github.com/Matthias-Wandel/jhead/commit/4827ed31c226dc5ed93603bd649e0e387a1778da
af854a3a-2127-422b-91ae-364da2661108https://github.com/Matthias-Wandel/jhead/issues/8

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 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
2026-05-24 19:31 UTCEG score recompute
2026-05-24 19:31 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2020-28840?

CVE-2020-28840 is a high vulnerability published on August 11, 2023. Buffer Overflow vulnerability in jpgfile.c in Matthias-Wandel jhead version 3.04, allows local attackers to execute arbitrary code and cause a denial of service (DoS).

When was CVE-2020-28840 disclosed?

CVE-2020-28840 was first published in the National Vulnerability Database on August 11, 2023, 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-2020-28840 actively exploited?

CVE-2020-28840 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-28840?

CVE-2020-28840 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2020-28840?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-28840, 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.

Dependency Blast Radius

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CVE-2020-28840

📅 Published

🔄 Last Modified

🔗 References (8)