CVE Tools
Sign in

CVE-2007-4770

Published: Jan 28, 2008Updated: Apr 23, 2026 Sources: CVE List NVD BDUCWE-399
NVD MITRE
6.8CVSSMEDIUM
EPSS Score
2.8%
Top 15.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

libicu in International Components for Unicode (ICU) 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero (aka \0), which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames.

CVSS Vector Breakdown

AV:NAC:MAu:NC:PI:PA:P
Exploitability
AV:NAccess Vector
Network
AC:MAccess Complexity
Medium
Au:NAuthentication
None
Impact
C:PConfidentiality
Partial
I:PIntegrity
Partial
A:PAvailability
Partial
Open in CVSS calculator →

Weaknesses

CWE-399

Affected Products

Gentoo LinuxGentoo Foundation Inc.
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Common EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
ICUUnicode Consortium
Library
OSS Libraries / generic-library
international components for unicodeicu-project
Library
OSS Libraries / generic-library
gentoo foundation inc.oss-projectUSOperating Systems
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
unicode consortiumoss-projectUSOSS Librariesaka unicode
icu-projectoss-projectOSS Librariesaka international components for unicode
and 1 more affected products View all →

Exploitability

Official Patch Available

References

http://security.gentoo.org/glsa/glsa-200803-20.xml
security.gentoo.org
https://nvd.nist.gov/vuln/detail/CVE-2007-4771
nvd.nist.gov
https://security-tracker.debian.org/tracker/CVE-2007-4771
security-tracker.debian.org
and 40 more references View all →

Timeline

Published
Jan 28, 2008
Last Updated
Apr 23, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2007-4770 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