CVE-2009-5016: php Numeric Errors
Vulnerability summary
CVE-2009-5016 is a medium (CVSS 6.8) Numeric Errors vulnerability in php. EPSS estimates a 2.65% chance of exploitation in the next 30 days, higher than 85.6% of scored vulnerabilities. 3 public exploits are recorded.
Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 12-11-2010PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
Integer overflow in the xml_utf8_decode function in ext/xml/xml.c in PHP before 5.2.11 makes it easier for remote attackers to bypass cross-site scripting (XSS) and SQL injection protection mechanisms via a crafted string that uses overlong UTF-8 encoding, a different vulnerability than CVE-2010-3870.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.65%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.65% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
3 foundExploit Reference (bugs.php.net)
Maturity: unknown
Exploit Reference (blackhat.com)
Maturity: unknown
Exploit Reference (sirdarckcat.blogspot.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Php1 product
- phpEOL≤ 5.2.10 | 1.0 | 2.0 | 2.0b10 | 3.0 | 3.0.1 | 3.0.2 | 3.0.3 | 3.0.4 | 3.0.5 | 3.0.6 | 3.0.7 | 3.0.8 | 3.0.9 | 3.0.10 | 3.0.11 | 3.0.12 | 3.0.13 | 3.0.14 | 3.0.15 | 3.0.16 | 3.0.17 | 3.0.18 | 4.0 | 4.0:beta_4_patch1 | 4.0:beta1 | 4.0:beta2 | 4.0:beta3 | 4.0:beta4 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.4 | 4.0.5 | 4.0.6 | 4.0.7 | 4.1.0 | 4.1.1 | 4.1.2 | 4.2.0 | 4.2.1 | 4.2.2 | 4.2.3 | 4.3.0 | 4.3.1 | 4.3.2 | 4.3.3 | 4.3.4 | 4.3.5 | 4.3.6 | 4.3.7 | 4.3.8 | 4.3.9 | 4.3.10 | 4.3.11 | 4.4.0 | 4.4.1 | 4.4.2 | 4.4.3 | 4.4.4 | 4.4.5 | 4.4.6 | 4.4.7 | 4.4.8 | 4.4.9 | 5.0.0 | 5.0.0:beta1 | 5.0.0:beta2 | 5.0.0:beta3 | 5.0.0:beta4 | 5.0.0:rc1 | 5.0.0:rc2 | 5.0.0:rc3 | 5.0.1 | 5.0.2 | 5.0.3 | 5.0.4 | 5.0.5 | 5.1.0 | 5.1.1 | 5.1.2 | 5.1.3 | 5.1.4 | 5.1.5 | 5.1.6 | 5.2.0 | 5.2.1
1 vendor · 1 product
References
15 links- lists.fedoraproject.org/pipermail/package-announce/2011-January/052836.htmlVendor AdvisoryX Refsource FEDORA
- www.blackhat.com/presentations/bh-usa-09/VELANAVA/BHUSA09-VelaNava-FavoriteXSS-SLIDES.pdfX Refsource MISCExploit
Show all 15 references
- lists.fedoraproject.org/pipermail/package-announce/2011-January/052845.htmlVendor AdvisoryX Refsource FEDORA