CVE catalog

CVE-2017-5645

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that,

[CVE catalog]

Severity: Critical · CVSS 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: Apr 2, 2017, 12:00:00 AM UTC
Updated: Oct 8, 2026, 10:16:40 PM UTC
Source: [NVD] · [CVE record]
EPSS: 89.36% · Oct 25, 2026

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.

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	apache-log4j2	sid	`2.26.1-1`	fixed
Debian	apache-log4j2	forky	`2.19.0-2`	fixed
Debian	apache-log4j2	trixie	`2.19.0-2`	fixed
Debian	apache-log4j2	bookworm	`2.19.0-2`	fixed
Cpe	log4j	Not reported	`2.8.2`	fixed
Cpe	oncommand_api_services	Not reported	Not reported	unknown
Cpe	oncommand_insight	Not reported	Not reported	unknown
Cpe	oncommand_workflow_automation	Not reported	Not reported	unknown
Cpe	service_level_manager	Not reported	Not reported	unknown
Cpe	snapcenter	Not reported	Not reported	unknown
Cpe	storage_automation_store	Not reported	Not reported	unknown
Cpe	fuse	Not reported	Not reported	unknown
Cpe	enterprise_linux	Not reported	Not reported	unknown
Cpe	enterprise_linux	Not reported	Not reported	unknown
Cpe	enterprise_linux	Not reported	Not reported	unknown
Cpe	enterprise_linux	Not reported	Not reported	unknown
Cpe	enterprise_linux	Not reported	Not reported	unknown
Cpe	enterprise_linux	Not reported	Not reported	unknown
Cpe	enterprise_linux	Not reported	Not reported	unknown
Cpe	enterprise_linux_desktop	Not reported	Not reported	unknown
Cpe	enterprise_linux_server	Not reported	Not reported	unknown
Cpe	enterprise_linux_server_aus	Not reported	Not reported	unknown
Cpe	enterprise_linux_server_aus	Not reported	Not reported	unknown
Cpe	enterprise_linux_server_eus	Not reported	Not reported	unknown
Ubuntu	apache-log4j2	pro	`2.2-1`	vulnerable
Ubuntu	apache-log4j2	pro	`2.4-1`	vulnerable
Ubuntu	apache-log4j2	pro	`2.4-2`	vulnerable
Ubuntu	apache-log4j2	pro	`2.4-2ubuntu0.1~esm1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	apache-log4j2	source	sid	`2.7-2`	not yet assigned	Not reported	[860489]
Debian	apache-log4j2	source	forky	`2.7-2`	not yet assigned	Not reported	[860489]
Debian	apache-log4j2	source	trixie	`2.7-2`	not yet assigned	Not reported	[860489]
Debian	apache-log4j2	source	bookworm	`2.7-2`	not yet assigned	Not reported	[860489]
Cpe	log4j	cpe	Not reported	`2.8.2`	Not reported	NVD-CVE-2017-5645	Not reported

[Debian bug #860489]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[liblog4j2-java]Fixed
Source package: [apache-log4j2]
Details (2)
- 2.19.0-2 · all · bookworm
  Fixed · Fixed: 2.7-2
  nvd · apache-log4j2 · debian · bookworm; nvd · apache-log4j2 · debian · 12
- 2.19.0-2 · all · bookworm
  Fixed · Fixed: 2.7-2
  nvd · apache-log4j2 · debian · bookworm; nvd · apache-log4j2 · debian · 12

[Debian 13 (Trixie)]

[liblog4j2-java]Fixed
Source package: [apache-log4j2]
Details (2)
- 2.19.0-2 · all · trixie
  Fixed · Fixed: 2.7-2
  nvd · apache-log4j2 · debian · 13
- 2.19.0-2 · all · trixie
  Fixed · Fixed: 2.7-2
  nvd · apache-log4j2 · debian · 13

Observed: Oct 23, 2026, 5:29:39 PM 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]