CVE-2020-21699 json
The web server Tengine 2.2.2 developed in the Nginx version from 0.5.6 thru 1.13.2 is vulnerable to an integer overflow vulnerability in th…
published 2023-08-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2020-14467
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
The web server Tengine 2.2.2 developed in the Nginx version from 0.5.6 thru 1.13.2 is vulnerable to an integer overflow vulnerability in the nginx range filter module, resulting in the leakage of potentially sensitive information triggered by specially crafted requests.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Classification
- Weakness
-
- CWE-190 Integer Overflow or Wraparound
References
Sources
- CVE List CVE-2020-21699
- NVD CVE-2020-21699
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.