MEDIUM
CVE-2007-4770
CWE-399Published: January 29, 2008· Updated: Jun 16, 2026
6.8
CVSS v3.1
Official 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.
Technical Analysis
CVE-2007-4770 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityP
AvailabilityP
AV:N/AC:M/Au:N/C:P/I:P/A:P
Affected Vendors & Products
icu-project1 product(s)
international components for unicode
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (80)
→
http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.htmlThird Party Advisory
→
http://rhn.redhat.com/errata/RHSA-2008-0090.htmlThird Party Advisory
→
http://secunia.com/advisories/28575Permissions Required
→
http://secunia.com/advisories/28615Permissions Required
→
http://secunia.com/advisories/28669Permissions Required
→
http://secunia.com/advisories/28783Permissions Required
→
http://secunia.com/advisories/29194Permissions Required
→
http://secunia.com/advisories/29242Permissions Required
→
http://secunia.com/advisories/29291Permissions Required
→
http://secunia.com/advisories/29294Permissions Required
→
http://secunia.com/advisories/29333Permissions Required
→
http://secunia.com/advisories/29852Permissions Required
→
http://secunia.com/advisories/29910Permissions Required
→
http://secunia.com/advisories/29987Permissions Required
→
http://secunia.com/advisories/30179Permissions Required
Quick Facts
CVE IDCVE-2007-4770
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessCWE-399
CISA KEVNo
Affected1 vendor(s)
PublishedJan 29, 2008
Related CVEs (CWE-399)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2007-4770 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.