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CVE-2021-37942

22
FAUCET Score

CVE-2021-37942 describes a local privilege escalation vulnerability affecting the Elastic APM Java agent. An authenticated local attacker could attach a malicious plugin to an application utilizing the agent, potentially executing code with elevated permissions. This vulnerability carries a CVSS score of 7.8 (High), indicating a significant impact on confidentiality, integrity, and availability with low attack complexity. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.18.0, <= 1.27.0CPE matchmatch criteria
cpe:2.3:a:elastic:apm_java_agent:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
16.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 50th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: co.elastic.apm:apm-agent-parentFixed in: 1.27.1
mavenpatch availablevia ghsa
Product: co.elastic.apm:elastic-apm-agentFixed in: 1.27.1

Vendor Advisories (1)

mavenGHSA-5xqm-hc45-f2g2high

APM Java Agent Local Privilege Escalation issue

Nov 22, 2023

References

discuss.elastic.co / t/apm-java-agent-security-update/291355
Vendor Advisory
elastic.co / community/security
Product