An issue was discovered in Castle Rock SNMPc Online 12.10.10 before 2020-01-28.

published 2020-04-09 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3908

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known

An issue was discovered in Castle Rock SNMPc Online 12.10.10 before 2020-01-28. It includes the username and password values in cleartext within each request's cookie value.

Patch / fix

fixed in 1

castlerock snmpc_online 2020-01-28

Exploit prediction

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

medium.com https://medium.com/tsscyber/noc-noc-whos-there-your-nms-is-pwned-1826174e0dee referenced PoC, tagged "exploit" by a source, unverified

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
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information
CWE-522 Insufficiently Protected Credentials

References

medium.com /tsscyber/noc-noc-whos-there-your-nms-is-pwned-1826174e0dee
exploit, third-party-advisory

Sources

CVE List CVE-2020-11557
NVD CVE-2020-11557

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.

Summary