7.8

CVE-2018-20552: broadcom tcpreplay Out-of-bounds Read

CVSS: 7.8v3.0HighModified
AliasesUBUNTU-CVE-2018-20552DEBIAN-CVE-2018-20552
Published 28-12-2018Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2018-20552 is a high (CVSS 7.8) Out-of-bounds Read vulnerability in broadcom tcpreplay. EPSS estimates a 1.25% chance of exploitation in the next 30 days, higher than 68.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.0 (NVD)
EPSS score
1.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
USN-5205-1

Timeline

  1. 28-12-2018
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

Tcpreplay before 4.3.1 has a heap-based buffer over-read in packet2tree in tree.c.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.25%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

0.00 pp

From 1.25% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Tcpreplay

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Broadcom1 product
Debian1 product
  • tcpreplay< 4.3.1-1
Ubuntu1 product
  • tcpreplay< 3.4.4-2+deb8u1ubuntu0.1~esm2 | < 4.2.6-1ubuntu0.1~esm2 | < 4.3.2-1ubuntu0.1~esm1

3 vendors · 3 products

References

6 links