Stack-based buffer overflow in the Phonetic Indexer (AvidPhoneticIndexer.exe) in Avid Media Composer 5.5.3 and earlier allows remote attackers to execute arbitrary code via a long request to TCP port 4659.
CVE-2011-5003
- High exploitation likelihood — EPSS 63%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 99.1%
- KEV
- Not listed
Published
December 25, 2011
Last Modified
April 29, 2026
References (12)
- cve@mitrehttp://secunia.com/advisories/47047
- cve@mitrehttp://www.exploit-db.com/exploits/18183
- cve@mitrehttp://www.osvdb.org/77376
- cve@mitrehttp://www.security-assessment.com/files/documents/advisory/Avid_Media_Composer-Phonetic_Indexer-Remote_Stack_Buffer_Overflow.pdf
- cve@mitrehttp://www.securityfocus.com/bid/50843
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/71514
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/47047
- af854a3a-2127-422b-91ae-364da2661108http://www.exploit-db.com/exploits/18183
- af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/77376
- af854a3a-2127-422b-91ae-364da2661108http://www.security-assessment.com/files/documents/advisory/Avid_Media_Composer-Phonetic_Indexer-Remote_Stack_Buffer_Overflow.pdf
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/50843
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/71514
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 0× in last 7d / 0× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 16:23 UTCEPSS rescore
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- 2026-06-14 23:14 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-29 05:55 UTCEG score recompute
- 2026-05-29 05:55 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
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- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(2 references)Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-18183✓ verifiedFirst seen Dec 1, 2011
AVID Media Composer Phonetic Indexer - Remote Stack Buffer Overflow (Metasploit)
Open source ↗ - Metasploitexploit/windows/misc/avidphoneticindexer✓ verifiedFirst seen Nov 29, 2011
Avid Media Composer 5.5 - Avid Phonetic Indexer Buffer Overflow
Open source ↗
Frequently asked(4)
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Is CVE-2011-5003 actively exploited?
How do I remediate CVE-2011-5003?
Dependency Blast Radius
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