CVE-2019-9555

Name: CVE-2019-9555
Creator: NVD / NIST
Published: 2019-03-05T23:29:02.91+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.10%

Last modified Jun 17, 2026

CVE-2019-9555 is a vulnerability of currently unknown severity. Sagemcom F@st 5260 routers using firmware version 0.4.39, in WPA mode, default to using a PSK that is generated from a 2-part wordlist of known values and a nonce with insufficient entropy. The number of possible PSKs is about 1.78 billion, which is too small.. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

Description

Sagemcom F@st 5260 routers using firmware version 0.4.39, in WPA mode, default to using a PSK that is generated from a 2-part wordlist of known values and a nonce with insufficient entropy. The number of possible PSKs is about 1.78 billion, which is too small.

Metrics

EPSS Probability

1.10%

61.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-331

Affected Software

Vendor	Product	Versions
Sagemcom	F\@St 5260 Firmware	0.4.39

References

https://seclists.org/fulldisclosure/2019/Mar/12Mailing List, Mitigation, Third Party Advisory
https://seclists.org/fulldisclosure/2019/Mar/12Mailing List, Mitigation, Third Party Advisory

Timeline

Published: Mar 5, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-9555?

How severe is CVE-2019-9555?

Severity scoring for CVE-2019-9555 is pending analysis. The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2019-9555?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-9555?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST