CVE-2019-6596: f5 networks, inc. big-ip (apm)
CVSS: 7.5v3.0HighModified
Published 13-03-2019Last modified 16-09-2024
Vulnerability summary
CVE-2019-6596 is a high (CVSS 7.5) vulnerability in f5 networks, inc. big-ip (apm). EPSS estimates a 1.38% chance of exploitation in the next 30 days, higher than 71.8% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
1.38%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-03-2019PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.1, 12.1.0-12.1.3.6, 11.6.1-11.6.3.2, or 11.5.1-11.5.8, when processing fragmented ClientHello messages in a DTLS session TMM may corrupt memory eventually leading to a crash. Only systems offering DTLS connections via APM are impacted.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.38%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
+0.06 pp
From 1.31% on 21-09-2026
21-09-202621-10-2026
EPSS score1.38%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
F51 product
- big-ip_access_policy_manager≥ 11.5.1, ≤ 11.5.8 | ≥ 11.6.1, ≤ 11.6.3 | ≥ 12.1.0, ≤ 12.1.3 | ≥ 13.0.0, ≤ 13.1.1 | 14.0.0
F5 networks, inc.1 product
- big-ip (apm)14.0.0-14.0.0.2, 13.0.0-13.1.1.1, 12.1.0-12.1.3.6, 11.6.1-11.6.3.2, 11.5.1-11.5.8
2 vendors · 2 products