5.9

CVE-2017-6166: f5 networks, inc. big-ip ltm, aam, afm, analytics, apm, asm, dns, link controller, pem, and websafe Double Free

CVSS: 5.9v3.1MediumModified
Published 22-11-2017Last modified 16-09-2024

Vulnerability summary

CVE-2017-6166 is a medium (CVSS 5.9) Double Free vulnerability in f5 networks, inc. big-ip ltm, aam, afm, analytics, apm, asm, dns, link controller, pem, and websafe. EPSS estimates a 1.93% chance of exploitation in the next 30 days, higher than 79.6% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.1 (NVD)
EPSS score
1.93%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 22-11-2017
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

In BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe software 12.0.0 to 12.1.1, in some cases the Traffic Management Microkernel (TMM) may crash when processing fragmented packets. This vulnerability affects TMM through a virtual server configured with a FastL4 profile. Traffic processing is disrupted while TMM restarts. If the affected BIG-IP system is configured as part of a device group, it will trigger a failover to the peer device.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.93%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

0.00 pp

From 1.93% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.93%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

F511 products
F5 networks, inc.1 product

2 vendors · 12 products

References

3 links