7.8

CVE-2020-15861: canonical ubuntu_linux Link Following

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2020-15861DEBIAN-CVE-2020-15861DLA-2313-1
Published 19-08-2020Last modified 03-12-2025
Open JSON

Vulnerability summary

CVE-2020-15861 is a high (CVSS 7.8) Link Following vulnerability in canonical ubuntu_linux. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.46%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
DSA-4746-1USN-4471-1

Timeline

  1. 19-08-2020
    PublishedVulnerability first disclosed.
  2. 03-12-2025
    Last modifiedVulnerability information updated.

Description

Net-SNMP through 5.7.3 allows Escalation of Privileges because of UNIX symbolic link (symlink) following.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

0.00 pp

From 0.46% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.46%

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

Netapp3 products
Canonical1 product
Debian1 product
  • net-snmp< 5.8+dfsg-5 | < 5.7.3+dfsg-1.7+deb9u3
Net-snmp1 product
Ubuntu1 product
  • net-snmp< 5.7.2~dfsg-8.1ubuntu3.3+esm1 | < 5.7.3+dfsg-1ubuntu4.5 | < 5.7.3+dfsg-1.8ubuntu3.5 | < 5.8+dfsg-2ubuntu2.3

5 vendors · 7 products

References

10 links