MEDIUM
CVE-2015-5522
CWE-119Published: August 11, 2015· Updated: Jun 17, 2026
6.8
CVSS v3.1
Official Description
Heap-based buffer overflow in the ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial of service (crash) via vectors involving a command character in an href.
Technical Analysis
CVE-2015-5522 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityP
AvailabilityP
AV:N/AC:M/Au:N/C:P/I:P/A:P
Affected Vendors & Products
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
Metasploit module search
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 (28)
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http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.htmlMailing List · Third Party Advisory
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http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.htmlMailing List · Third Party Advisory
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http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlMailing List · Third Party Advisory
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http://www.debian.org/security/2015/dsa-3309Third Party Advisory
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http://www.ubuntu.com/usn/USN-2695-1Third Party Advisory
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https://support.apple.com/HT205212Third Party Advisory
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https://support.apple.com/HT205213Third Party Advisory
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https://support.apple.com/HT205267Third Party Advisory
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http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.htmlMailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2015-5522
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessCWE-119
CISA KEVNo
Affected4 vendor(s)
PublishedAug 11, 2015
Related CVEs (CWE-119)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2015-5522 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. CVE data is provided under the NVD usage policy.