CVE-2009-0041 json
IAX2 in Asterisk Open Source 1.2.x before 1.2.31, 1.4.x before 1.4.23-rc4, and 1.6.x before 1.6.0.3-rc2; Business Edition A.x.x, B.x.x befo…
published 2009-01-14 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-0050
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.7%
- EPSS 2.7% chance of exploitation in 30 days, percentile 86%
- public exploits
- 0
- none known
Summary
IAX2 in Asterisk Open Source 1.2.x before 1.2.31, 1.4.x before 1.4.23-rc4, and 1.6.x before 1.6.0.3-rc2; Business Edition A.x.x, B.x.x before B.2.5.7, C.1.x.x before C.1.10.4, and C.2.x.x before C.2.1.2.1; and s800i 1.2.x before 1.3.0 responds differently to a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.
Patch / fix
- asterisk Debian 14 1:1.6.1.0~dfsg~rc3-1
debian advisories DEBIAN-CVE-2009-0041
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-2009-0041 updated
asterisk: Replies to failed login attempts differently based on whether the user account exists (information disclosure)
-
Red Hat All currently supported Red Hat productsnot 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
2.71% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
securityfocus.com
/bid/33174
vdb-entry, patch
-
security.gentoo.org
/glsa/glsa-200905-01.xml
vendor-advisory
-
debian.org
/security/2009/dsa-1952
vendor-advisory
-
securityfocus.com
/archive/1/499884/100/0/threaded
mailing-list
-
secunia.com
/advisories/33453
third-party-advisory
-
securityreason.com
/securityalert/4910
third-party-advisory
-
secunia.com
/advisories/37677
third-party-advisory
-
securitytracker.com
/id?1021549
vdb-entry
- downloads.digium.com /pub/security/AST-2009-001.html
-
vupen.com
/english/advisories/2009/0063
vdb-entry
-
secunia.com
/advisories/34982
third-party-advisory
Sources
- CVE List CVE-2009-0041
- NVD CVE-2009-0041
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.