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Vulnerabilities

Vulnerability · CVE-2026-94520

Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.

Published Oct 13, 2026 · catalog updated Oct 13, 2026 · Use of externally-controlled format

Check if you run it

No confirmed exploitation is on record for CVE-2026-94520. EPSS is 0.61%. Act only if a listed version of Use of externally-controlled format is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Use of externally-controlled format).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.61%
Remediation
Advisory link
Affected products
See sources for product scope

Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-94520

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-2026-94520. EPSS is 0.61%. Act only if a listed version of Use of externally-controlled format is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-134: Format String Vulnerability. EPSS 0.61%. 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. Oct 13, 2026 · Catalog

    Detected

    Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.

  2. Oct 13, 2026 · Catalog

    Updated

    Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.

Sources

  • CVE.orgVulnerability recordCVE-2026-94520

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-94520

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-94520

    Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.