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CVE-2021-31380

SRC Series: A remote attacker sending a specially crafted query may cause the web server to disclose sensitive information

Medium5.3EPSS 1.1%
Published
Updated
Reserved
Assigned by
juniper

Description

A configuration weakness in the JBoss Application Server (AppSvr) component of Juniper Networks SRC Series allows a remote attacker to send a specially crafted query to cause the web server to disclose sensitive information in the HTTP response which allows the attacker to obtain sensitive information.

Scores

CVSS scores of CVE-2021-31380, by who scored it
Scored byCVSSScoreVector
juniperCNA (assigner)3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVDNVD · Modified3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS (exploitation in 30 days)
1.1% · top 33% of all CVEs (6 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

Affected products

What to do

Solution: The following software releases have been updated to resolve this specific issue: 4.12.0R5, 4.13.0R3, and all subsequent releases.

Workaround: There are no viable workarounds for this issue. To reduce the risk of exploitation utilize common security BCPs to limit the exploitable surface by limiting access to network and device to trusted systems, administrators, networks and hosts.

Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .