CVE Tools
Sign in

CVE-2007-4771

Published: Jan 28, 2008Updated: Apr 23, 2026 Sources: CVE List NVD BDUCWE-399
9.3CRITICAL
NVD MITRE
EPSS Score
2.5%
Top 16.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack. NOTE: some of these details are obtained from third party information.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:MAu:NC:CI:CA:C
Exploitability
AV:NAccess Vector
Network
AC:MAccess Complexity
Medium
Au:NAuthentication
None
Impact
C:CConfidentiality
Complete
I:CIntegrity
Complete
A:CAvailability
Complete
Open in CVSS calculator →

Weaknesses

CWE-399

Affected Products

icu-project
oss-projectaka international components for unicode
international components for unicodeLibrary
OSS Libraries / generic-library
Gentoo Foundation Inc.
oss-project·US
Gentoo LinuxOn-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Common EditionOn-premOS
Operating Systems / linux-distro
Unicode Consortium
oss-project·USaka unicode
ICULibrary
OSS Libraries / generic-library
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2007-4771?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/39936
exchange.xforce.ibmcloud.com
http://sunsolve.sun.com/search/document.do?assetkey=1-26-233922-1
sunsolve.sun.com
http://secunia.com/advisories/28615
secunia.com
and 40 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2007-4771 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows