CVE-2020-28840

Buffer Overflow vulnerability in jpgfile.c in Matthias-Wandel jhead version 3.04, allows local...

7.8 HighFix available

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).

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.36%Up 0.3 points since Aug 12, 2023

What each source reports

NVD Score used 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).

Record: CVE-2020-28840
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-120
Updated: 2026-11-02

CVE List No score

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).

Record: CVE-2020-28840
Updated: 2026-11-02

EUVDEUVD-2020-21233 No score

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).

Record: EUVD-2020-21233
Updated: 2026-11-03

GitHub AdvisoriesGHSA-h46m-86hc-7cwf 7.8

Buffer Overflow vulnerability in jpgfile.c in Matthias-Wandel jhead version 3.04, allows local...

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).

Record: GHSA-h46m-86hc-7cwf
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-120
Updated: 2026-11-02

OSV 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).

Record: CVE-2020-28840
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2020-28840 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).

Record: DEBIAN-CVE-2020-28840
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2020-28840 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).

Record: UBUNTU-CVE-2020-28840
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

matthiaswandel jhead

Affected packages

Affected packages
Package	Affected	Fixed
`jhead` Debian:12	before 1:3.06.0.1-2	1:3.06.0.1-2
`jhead` Debian:13	before 1:3.06.0.1-2	1:3.06.0.1-2
`jhead` Debian:14	before 1:3.06.0.1-2	1:3.06.0.1-2
`jhead` Ubuntu:Pro:14.04:LTS	All versions, plus listed versions 1:2.97-11:2.97-1+deb8u1build0.14.04.11:2.97-1+deb8u2build0.14.04.1~esm11:2.97-1+deb8u2ubuntu0.1~esm11:2.97-1+deb8u2ubuntu0.1~esm21:2.97-1+deb8u2ubuntu0.1~esm31:2.97-1+deb8u2ubuntu0.1~esm4	None known
`jhead` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 1:3.00-11:3.00-21:3.00-31:3.00-4+deb9u1build0.16.04.11:3.00-4+deb9u1ubuntu0.1~esm11:3.00-4+deb9u1ubuntu0.1~esm21:3.00-4+deb9u1ubuntu0.1~esm31:3.00-4+deb9u1ubuntu0.1~esm4	None known
`jhead` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 1:3.00-41:3.00-51:3.00-61:3.00-8~build0.18.04.11:3.00-8~ubuntu0.11:3.00-8~ubuntu0.21:3.00-8~ubuntu0.2+esm1	None known
`jhead` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 1:3.03-31:3.04-11:3.04-1ubuntu0.11:3.04-1ubuntu0.21:3.04-1ubuntu0.2+esm1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-28840 is a high vulnerability (CVSS 7.8) in Matthiaswandel Jhead, published August 11, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 29th percentile. Fixed in jhead 1:3.06.0.1-2.

References

Show 4 moreShow less