CVE-2020-5637 json
Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver.
published 2020-12-14 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-26798
- cvss
- 6.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.
Patch / fix
- necplatforms aterm_sa3500g_firmware 3.5.9
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.8 | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 5.2 | AV:A/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- NEC Corporation Aterm SA3500G
Classification
- Weakness
-
- CWE-354 Improper Validation of Integrity Check Value
References
-
necplatforms.co.jp
/product/security_ap/info_20201211.html
vendor-advisory
-
jvn.jp
/en/jp/JVN55917325/index.html
third-party-advisory
-
jvn.jp
/jp/JVN55917325/index.html
third-party-advisory
Sources
- CVE List CVE-2020-5637
- NVD CVE-2020-5637
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