Paper/Archive/CVE-2020-27635

CVE-2020-27635

mitre — In PicoTCP 1.7.0, TCP ISNs are improperly random.

EPSS 0.9%CVSS 9.1

critical.is priorityof 100

39

CVSS 9.1 (NVD)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 58.9.589 × 2011.8 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

In PicoTCP 1.7.0, TCP ISNs are improperly random.

Affected

ProductAffectedFixed inSource

n/an/a–CNA

Scores by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refforescout.com refcisa.gov/news-events/ics-advisories/icsa-21-042-01 refforescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks