CVE catalog

CVE-2026-6536

DLMS/COSEM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4

Severity: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Apr 29, 2026, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.18% · Oct 25, 2026

DLMS/COSEM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	wireshark	sid	`4.6.9-1`	fixed
Debian	wireshark	forky	`4.6.9-1`	fixed
Debian	wireshark	trixie	`4.4.18-0+deb13u1`	not affected
Debian	wireshark	trixie-security	`4.4.19-0+deb13u1`	not affected
Debian	wireshark	bookworm	`4.0.17-0+deb12u3`	not affected
Debian	wireshark	bookworm-security	`4.0.17-0+deb12u3`	not affected
Cpe	wireshark	Not reported	Not reported	unknown
Cpe	wireshark	Not reported	Not reported	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	wireshark	source	sid	`4.6.5-1`	not yet assigned	Not reported	[1135323]
Debian	wireshark	source	forky	`4.6.5-1`	not yet assigned	Not reported	[1135323]
Debian	wireshark	source	trixie	`Not affected`	unimportant	Not reported	[1135323]
Debian	wireshark	source	bookworm	`Not affected`	unimportant	Not reported	[1135323]

[Debian bug #1135323]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libwireshark16]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[libwireshark-data]Not affected
Source package: [wireshark]
Details (6)
- 4.0.17-0+deb12u3 · all · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · all · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · all · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · all · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.6-1~deb12u1 · all · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.6-1~deb12u1 · all · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[libwireshark-dev]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[libwiretap13]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[libwiretap-dev]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[libwsutil14]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[libwsutil-dev]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[tshark]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[wireshark]Not affected
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[wireshark-common]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[wireshark-dev]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[wireshark-doc]Not affected
Source package: [wireshark]
Details (6)
- 4.0.17-0+deb12u3 · all · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · all · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · all · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · all · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.6-1~deb12u1 · all · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.6-1~deb12u1 · all · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[wireshark-gtk]Not affected
Source package: [wireshark]
Details (2)
- 4.0.6-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.6-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
[wireshark-qt]Not affected
Source package: [wireshark]
Details (4)
- 4.0.17-0+deb12u3 · amd64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm
- 4.0.17-0+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wireshark · debian · bookworm

Observed: Oct 27, 2026, 7:54:56 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]