CVE-2021-44759 json
Improper authentication vulnerability in TLS origin verification
published 2022-03-23 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31574
- cvss
- 8.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
Improper Authentication vulnerability in TLS origin validation of Apache Traffic Server allows an attacker to create a man in the middle attack. This issue affects Apache Traffic Server 8.0.0 to 8.1.0.
Patch / fix
- trafficserver Debian 12 9.1.0+ds-1
debian advisories DEBIAN-CVE-2021-44759
Exploit prediction
1.58% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Apache Software Foundation Apache Traffic Server
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
debian.org
/security/2022/dsa-5153
vendor-advisory, third-party-advisory
-
lists.apache.org
/thread/zblwzcfs9ryhwjr89wz4osw55pxm6dx6
mailing-list, vendor-advisory
Sources
- CVE List CVE-2021-44759
- NVD CVE-2021-44759
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.