CVE-2019-7311 json
An issue was discovered on Linksys WRT1900ACS 1.0.3.187766 devices.
published 2019-06-06 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16855
- cvss
- 7.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
An issue was discovered on Linksys WRT1900ACS 1.0.3.187766 devices. A lack of encryption in how the user login cookie (admin-auth) is stored on a victim's computer results in the admin password being discoverable by a local attacker, and usable to gain administrative access to the victim's router. The admin password is stored in base64 cleartext in an "admin-auth" cookie. An attacker sniffing the network at the time of login could acquire the router's admin password. Alternatively, gaining physical access to the victim's computer soon after an administrative login could result in compromise.
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-311 Missing Encryption of Sensitive Data
References
-
robot-security.blogspot.com
third-party-advisory
-
x0rsecurity.com
/2019/05/03/my-first-cve-linksys-wrt-1300-acs-cve-2019-7311/
third-party-advisory
Sources
- CVE List CVE-2019-7311
- NVD CVE-2019-7311
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