CVE-2020-5521 json
The kantan netprint App for iOS 2.0.2 and earlier does not verify X.509 certificates from servers, which allows man-in-the-middle attackers…
published 2020-01-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-26684
- cvss
- 7.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
The kantan netprint App for iOS 2.0.2 and earlier does not verify X.509 certificates from servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Affected products
- Fuji Xerox Co.,Ltd. kantan netprint App for iOS
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
printing.ne.jp
/support/information/AppVulnerability.html
third-party-advisory
-
jvn.jp
/en/jp/JVN66435380/index.html
third-party-advisory
Sources
- CVE List CVE-2020-5521
- NVD CVE-2020-5521
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.