CVE & CISA-KEV Catalog

CVE-2020-15861

HIGH

7.8

CVSS v3

Description

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

CWE-59Link Following

How to fix

Remediation Available

net-snmpDebian

Fixed in:5.8+dfsg-5CVE-2020-15861

Fixed in:5.8+dfsg-5CVE-2020-15861

Fixed in:5.8+dfsg-5CVE-2020-15861

Fixed in:5.8+dfsg-5CVE-2020-15861

libsnmp-baseUbuntu

Fixed in:5.7.2~dfsg-8.1ubuntu3.3+esm1USN-4471-1

Fixed in:5.7.3+dfsg-1ubuntu4.5USN-4471-1

Fixed in:5.7.3+dfsg-1.8ubuntu3.5USN-4471-1

Fixed in:5.8+dfsg-2ubuntu2.3USN-4471-1

libsnmp-perlUbuntu

Fixed in:5.7.2~dfsg-8.1ubuntu3.3+esm1USN-4471-1

Fixed in:5.7.3+dfsg-1ubuntu4.5USN-4471-1

Fixed in:5.7.3+dfsg-1.8ubuntu3.5USN-4471-1

Fixed in:5.8+dfsg-2ubuntu2.3USN-4471-1

libsnmp30Ubuntu

Fixed in:5.7.2~dfsg-8.1ubuntu3.3+esm1USN-4471-1

Fixed in:5.7.3+dfsg-1ubuntu4.5USN-4471-1

Fixed in:5.7.3+dfsg-1.8ubuntu3.5USN-4471-1

libsnmp35Ubuntu

Fixed in:5.8+dfsg-2ubuntu2.3USN-4471-1

net-snmpUbuntu

Fixed in:5.7.2~dfsg-8.1ubuntu3.3+esm1USN-4471-1

Fixed in:5.7.3+dfsg-1ubuntu4.5USN-4471-1

Fixed in:5.7.3+dfsg-1.8ubuntu3.5USN-4471-1

Fixed in:5.8+dfsg-2ubuntu2.3USN-4471-1

snmpdUbuntu

Fixed in:5.7.2~dfsg-8.1ubuntu3.3+esm1USN-4471-1

Fixed in:5.7.3+dfsg-1ubuntu4.5USN-4471-1

Fixed in:5.7.3+dfsg-1.8ubuntu3.5USN-4471-1

Fixed in:5.8+dfsg-2ubuntu2.3USN-4471-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.46%probability of exploitation in 30 days

37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory5

Related Vulnerabilities

Other CWE-59 (Link Following) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-30333	High	7.5	99%	KEV + Ransom	Fix
CVE-2021-21300	High	8.0	89%	-	Fix
CVE-2021-32610	High	7.1	73%	-	Fix
CVE-2020-36193	High	7.5	71%	KEV	Fix
CVE-2023-40028	Medium	4.9	58%	-	Fix
CVE-2020-0787	High	7.8	43%	KEV + Ransom	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-03.