ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2023-39615

Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c.

Published Aug 29, 2023 · catalog updated Oct 15, 2026 · Xmlsoft Libxml2 v2.11.0 was

Check if you run it

No confirmed exploitation is on record for CVE-2023-39615. EPSS is 1.08%. Act only if a listed version of Xmlsoft Libxml2 v2.11.0 was is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Xmlsoft Libxml2 v2.11.0 was).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.08%
Remediation
Not established
Affected products
cpe xmlsoft/libxml2

Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the product does not support the legacy SAX1 interface with custom callbacks; there is a crash even without crafted input.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe xmlsoft/libxml22.11.0

How to fix CVE-2023-39615

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2023-39615. EPSS is 1.08%. Act only if a listed version of Xmlsoft Libxml2 v2.11.0 was is installed.

Which versions are affected?

Compare what you have installed with 2.11.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-119: Buffer Overflow. EPSS 1.08%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 29, 2023 · NIST NVD

    Detected

    Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the product does not support the legacy SAX1 interface with custom callbacks; there is a crash even without crafted input.

  2. Oct 15, 2026 · NIST NVD

    Updated

    Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the product does not support the legacy SAX1 interface with custom callbacks; there is a crash even without crafted input.

Sources

  • CVE.orgVulnerability recordCVE-2023-39615

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-39615

    30-day exploitation probability 1.1%

    first.org
  • NIST NVDVulnerability recordCVE-2023-39615

    Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the prod

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.