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CVE-2009-1889

20
FAUCET Score

CVE-2009-1889 describes a denial-of-service vulnerability in Pidgin versions prior to 2.5.8. The flaw arises from a misinterpretation of ICQWebMessage as ICQSMS, allowing remote attackers to crash the application by sending a crafted ICQ web message that triggers excessive memory allocation. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and no authentication required, leading to a partial availability impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5.7CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:2.0.0:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:2.0.1:*:*:*:*:*:*:*
2.0.2CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:2.0.2:*:*:*:*:*:*:*
2.0.2CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:2.0.2:*:linux:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.38%
Probability of exploitation in next 30 days
EPSS Percentile
87.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0338 is in the 83rd percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: pidgin-0:2.5.8-1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: pidgin-0:2.5.8-1.el5
View patch

Vendor Advisories (1)

redhatCVE-2009-1889Moderate

pidgin: DoS via specially-crafted ICQWebMessage

May 28, 2009

References

developer.pidgin.im / ticket/9483
PatchVendor Advisory
pidgin.im / pipermail/devel/2009-May/008227.html
Patch
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/35693
secunia.com / advisories/35697
secunia.com / advisories/35706
secunia.com / advisories/37071
exchange.xforce.ibmcloud.com / vulnerabilities/51448
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10004
redhat.com / archives/fedora-package-announce/2009-July/msg00162.html
redhat.com / archives/fedora-package-announce/2009-July/msg00176.html
redhat.com / archives/fedora-package-announce/2009-July/msg00228.html
redhat.com / support/errata/RHSA-2009-1139.html
securityfocus.com / bid/35530
ubuntu.com / usn/USN-796-1
vupen.com / english/advisories/2009/1749