MEDIUM
CVE-2016-7393
CWE-125Published: February 15, 2017· Updated: Jun 17, 2026
5.5
CVSS v3.1
Official Description
Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.
Technical Analysis
CVE-2016-7393 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Vendors & Products
libav1 product(s)
libav
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
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PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (8)
→
http://www.openwall.com/lists/oss-security/2016/09/10/5Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/92902Third Party Advisory · VDB Entry
→
https://blogs.gentoo.org/ago/2016/08/20/libav-stack-based-buffer-overflow-in-aac_sync-aac_parser-c/Patch · Third Party Advisory · VDB Entry
→
http://www.openwall.com/lists/oss-security/2016/09/10/5Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/92902Third Party Advisory · VDB Entry
→
https://blogs.gentoo.org/ago/2016/08/20/libav-stack-based-buffer-overflow-in-aac_sync-aac_parser-c/Patch · Third Party Advisory · VDB Entry
Quick Facts
CVE IDCVE-2016-7393
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-125
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 15, 2017
Related CVEs (CWE-125)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-7393 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.