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CVE-2007-4770
libicu in International Components for Unicode (ICU) 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group…
- 6.8MediumCVSS base score
- 2.9%Exploitation in 30 daysEPSS · top 13% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By mitre
- 5 months later
· 5 months later
Published
- 17 years later
· 17 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 2.9% · top 13% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Affected products
n/a
- affected n/a
References
40
- oval:org.mitre.oval:def:11172 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 233922 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
- 28615 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- oval:org.mitre.oval:def:5507 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 29852 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 28783 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 29291 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SA:2008:023 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 29242 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1019269 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- GLSA-200805-16 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 29987 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SR:2008:005 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 27455 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 29294 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.openoffice.org/security/cves/CVE-2007-4770.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-200803-20 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-1511 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- libicu-restackframes-dos(39938) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0043 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2008:0090 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 29333 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://issues.rpath.com/browse/RPL-2199 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-591-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- MDVSA-2008:026 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 231641 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
- ADV-2008-1375 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=429023 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 29194 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 30179 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2008-1076 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.openoffice.org/security/cves/CVE-2007-5745.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 28575 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20080206 rPSA-2008-0043-1 icu (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- [icu-support] 20080122 ICU Patch for bugs in Regular Expressions (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 28669 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2008-0807 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 29910 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2008-1036 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- ADV-2008-0282 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2007-4751 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2007-4770)Record last updated .