CVE-2009-1902

NONECVSS 0.0Trending — 3 sources updated this weekWeaponized

0.0

The multipart processor in ModSecurity before 2.5.9 allows remote attackers to cause a denial of service (crash) via a multipart form datapost request with a missing part header name, which triggers a NULL pointer dereference.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 94.6%
KEV: Not listed

Published

June 3, 2009

Last Modified

April 23, 2026

References (28)

cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html
cve@mitrehttp://secunia.com/advisories/34256
cve@mitrehttp://secunia.com/advisories/34311
cve@mitrehttp://secunia.com/advisories/35687
cve@mitrehttp://security.gentoo.org/glsa/glsa-200907-02.xml
cve@mitrehttp://sourceforge.net/project/shownotes.php?release_id=667542&group_id=68846
cve@mitrehttp://www.osvdb.org/52553
cve@mitrehttp://www.securityfocus.com/archive/1/501968
cve@mitrehttp://www.securityfocus.com/bid/34096
cve@mitrehttp://www.vupen.com/english/advisories/2009/0703
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/49212
cve@mitrehttps://www.exploit-db.com/exploits/8241
cve@mitrehttps://www.redhat.com/archives/fedora-package-announce/2009-March/msg00487.html
cve@mitrehttps://www.redhat.com/archives/fedora-package-announce/2009-March/msg00529.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-476NULL Pointer Dereference

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
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2026-05-31 00:13 UTCepss_batch
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2026-05-30 16:40 UTCEG score recompute
2026-05-30 16:40 UTCGHSA enrichment
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-8241✓ verified
First seen Mar 19, 2009
ModSecurity < 2.5.9 - Remote Denial of Service
Open source ↗

Frequently asked(4)

What is CVE-2009-1902?

CVE-2009-1902 is a none vulnerability published on June 3, 2009. The multipart processor in ModSecurity before 2.5.9 allows remote attackers to cause a denial of service (crash) via a multipart form datapost request with a missing part header name, which triggers a NULL pointer dereference.

When was CVE-2009-1902 disclosed?

CVE-2009-1902 was first published in the National Vulnerability Database on June 3, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2009-1902 actively exploited?

CVE-2009-1902 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2009-1902?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-1902, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2009-1902

📅 Published

🔄 Last Modified

🔗 References (28)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2009-1902?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (28)

Frequently asked(4)

Related CVEs(same CWE)