perl: regexp matcher crash on invalid UTF-8 characters
Published Oct 29, 2009
5.0
MEDIUMCVSS 2.0
EPSS 2.19%
Description
Perl 5.10.1 allows context-dependent attackers to cause a denial of service (application crash) via a UTF-8 character with a large, invalid codepoint, which is not properly handled during a regular-expression match.
Affected products
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of perl as shipped with Red Hat Enterprise Linux 3, 4, or 5.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.19% (0.02185) | 81.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.20% (0.02203) | 80.16th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.92% (0.01917) | 81.69th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.48% (0.04481) | 81.46th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.66% (0.01657) | 80.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.26% (0.01262) | 86.20th | v3 (v2023.03.01) |
| May 3, 2024 | 1.26% (0.01262) | 85.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.26% (0.01262) | 83.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.54% (0.01537) | 74.00th | v2 (v2022.01.01) |
| Feb 3, 2023 | 2.69% (0.02686) | 82.44th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
No CWE recorded.
References (15)
- http://perl5.git.perl.org/perl.git/commit/0abd0d78a73da1c4d13b1c700526b7e5d03b32d4 x_refsource_CONFIRMPatch
- http://rt.perl.org/rt3/Public/Bug/Display.html?id=69973 x_refsource_CONFIRM
- http://rt.perl.org/rt3/Ticket/Attachment/617489/295383/ x_refsource_MISC
- http://secunia.com/advisories/37144 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://securitytracker.com/id?1023077 vdb-entryx_refsource_SECTRACK
- http://www.openwall.com/lists/oss-security/2009/10/23/8 mailing-listx_refsource_MLIST
- http://www.osvdb.org/59283 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/36812 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2009/3023 vdb-entryx_refsource_VUPENPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2009-3626 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=547656 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53939 vdb-entryx_refsource_XF
- https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6225 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2009-3626
- https://www.cve.org/CVERecord?id=CVE-2009-3626
Change history (0)
No recorded changes yet.