fence_manual, as used in fence 2.02.00-r1 and possibly cman, allows local users to modify arbitrary files via a symlink attack on the fence…

published 2008-10-15 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-4560

cvss: 7.2; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits: 0; none known

fence_manual, as used in fence 2.02.00-r1 and possibly cman, allows local users to modify arbitrary files via a symlink attack on the fence_manual.fifo temporary file.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-4580 updated 2025-11-21

cman/fence: insecure temporary file usage in the manual fence agent

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-59 Improper Link Resolution Before File Access

References

ubuntu.com /usn/USN-875-1
vendor-advisory
openwall.com /lists/oss-security/2008/10/16/1
mailing-list
bugs.gentoo.org /show_bug.cgi?id=240576
exchange.xforce.ibmcloud.com /vulnerabilities/45953
vdb-entry
openwall.com /lists/oss-security/2008/10/13/3
mailing-list

Sources

CVE List CVE-2008-4580
NVD CVE-2008-4580

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary