What is CVE-2011-2522?

CVE-2011-2522 is a vulnerability in Samba, classified under Cross-Site Request Forgery (CSRF). Published 2011-07-29.

Is CVE-2011-2522 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Samba

CVE-2011-2522

Multiple cross-site request forgery (CSRF) vulnerabilities in the Samba Web Administration Tool (SWAT) in Samba 3.x before 3.5.10 allow remote attackers to hijack the authentication of administrators for requests that (1) shut down daemons, (2) start daemons, (3) add shares, (4) remove shares, (5) add printers, (6) remove printers, (7) add user accounts, or (8) remove user accounts, as demonstrated by certain start, stop, and restart parameters to the status program.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2011-07-29 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.100 (95.5th percentile), scored 2026-09-29.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 95th percentile — 95.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.100 · newest: 0.100 · change: 0.000

Affected products

Samba
Canonical Ubuntu Linux — versions 8.04, 10.04, 10.10
Debian Linux — versions 5.0, 6.0, 7.0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

References

www.mandriva.com/security/advisories (vendor-advisory, Broken Link)
osvdb.org/74071 (vdb-entry, Broken Link)
www.itrc.hp.com/service/cki/docDisplay.do (vendor-advisory, Broken Link)
marc.info/ (vendor-advisory, Mailing List, Third Party Advisory)
securitytracker.com/id (VDB Entry, Third Party Advisory, vdb-entry)
bugzilla.samba.org/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
www.debian.org/security/2011/dsa-2290 (vendor-advisory, Third Party Advisory)
www.samba.org/samba/security/CVE-2011-2522 (Vendor Advisory)
secunia.com/advisories/45393 (Third Party Advisory, third-party-advisory)
secunia.com/advisories/45496 (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2011-2522?: CVE-2011-2522 is a vulnerability in Samba, classified under Cross-Site Request Forgery (CSRF). Published 2011-07-29.
Is CVE-2011-2522 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.