🛡️ CVE-2022-33977 — untangle

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-776 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

untangle vulnerable to XML Entity Expansion

Impact

An attacker may be able to cause a denial-of-service (DoS) condition on the server on which the product is running. This affects untangle versions up to and including 1.2.0

Patches

The problem has been fixed with version 1.2.1

Workarounds

None

References

https://jvn.jp/en/jp/JVN30454777/

For more information

If you have any questions or comments about this advisory:

  • Open an [issue](https://github.com/stchris/untangle/issues)

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2022-33977 is classified as CWE-776: XML Entity Expansion. Nested entity definitions expand enormously when parsed, consuming memory and CPU.

Affected software

CVE-2022-33977 is recorded against 1 package.

  • untangle (fixed in 1.2.1)

Timeline and source

Published on 6 August 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
github.com (Web)
jvn.jp (Web)

CVE-2022-33977 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE CWE-776
Public Exploit ✅ No
Source OSV
Published 2022-08-06
Updated 2026-08-12
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
untangle — 1.2.1

Similar Threats

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