HIGH
CVE-2022-23308
CWE-416Published: February 26, 2022· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes.
Technical Analysis
CVE-2022-23308 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.
From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Apple6 product(s)
ipadosiphone osmac os xmacostvoswatchos
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
netapp28 product(s)
active iq unified managerclustered data ontapclustered data ontap antivirus connectormanageability software development kitontap select deploy administration utilitysmi-s providersnapdrivesnapmanagersolidfire\, enterprise sds \& hci storage nodesolidfire \& hci management nodebootstrap oshci compute node+16
Oracle7 product(s)
communications cloud native core binding support functioncommunications cloud native core network function cloud native environmentcommunications cloud native core network repository functioncommunications cloud native core network slice selection functioncommunications cloud native core unified data repositorymysql workbenchzfs storage appliance kit
xmlsoft1 product(s)
libxml2
Source: NVD CPE · 46 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
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 (38)
→
http://seclists.org/fulldisclosure/2022/May/33Mailing List · Third Party Advisory
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http://seclists.org/fulldisclosure/2022/May/34Mailing List · Third Party Advisory
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http://seclists.org/fulldisclosure/2022/May/35Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2022/May/36Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2022/May/37Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2022/May/38Mailing List · Third Party Advisory
→
https://github.com/GNOME/libxml2/commit/652dd12a858989b14eed4e84e453059cd3ba340ePatch · Third Party Advisory
→
https://gitlab.gnome.org/GNOME/libxml2/-/blob/v2.9.13/NEWSRelease Notes · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/04/msg00004.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/202210-03Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20220331-0008/Third Party Advisory
→
https://support.apple.com/kb/HT213253Third Party Advisory
→
https://support.apple.com/kb/HT213254Third Party Advisory
→
https://support.apple.com/kb/HT213255Third Party Advisory
Quick Facts
CVE IDCVE-2022-23308
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-416
CISA KEVNo
Affected6 vendor(s)
PublishedFeb 26, 2022
Related CVEs (CWE-416)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-23308 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.