7.8

CVE-2019-5599: freebsd

Modified
Published 02-07-2019Last modified 04-08-2024

Vulnerability summary

CVE-2019-5599 is a high (CVSS 7.8) vulnerability in freebsd. EPSS estimates a 5.08% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 5% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v2.0 (NVD)
EPSS score
5.08%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3
MGASA-2019-0195MGASA-2019-0196MGASA-2019-0197

Timeline

  1. 02-07-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

In FreeBSD 12.0-STABLE before r349197 and 12.0-RELEASE before 12.0-RELEASE-p6, a bug in the non-default RACK TCP stack can allow an attacker to cause several linked lists to grow unbounded and cause an expensive list traversal on every packet being processed, leading to resource exhaustion and a denial of service.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

5.08%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

No change 0.00 pp

From 5.08% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Freebsd1 product
  • freebsdEOL12.0 | 12.0:p1 | 12.0:p2 | 12.0:p3 | 12.0:p4 | 12.0:p5

1 vendor · 1 product

References

10 links