CVE-2021-44154Public exploitNetwork attack vector

Service crash via oversized diagnostics option

Published Dec 13, 2021 · Updated Aug 4, 2024

Buffer overflow in Reprise RLM 14.2 allows remote authenticated users with an admin account to crash the service via the web interface. The /goform/edit_opt handler stores option input longer than 1,024 characters without rejecting it, and /goform/diagnostics_doit later processes the oversized value. Administrative access and a diagnostics run are required to trigger the overflow; public evidence demonstrates a fault or crash but not reliable code execution.

CVSS severity7.2
High
EPSS probability1.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Reprise RLM 14.2 allows remote authenticated users with an admin account to crash the service via the web interface. The /goform/edit_opt handler stores option input longer than 1,024 characters without rejecting it, and /goform/diagnostics_doit later processes the oversized value. Administrative access and a diagnostics run are required to trigger the overflow; public evidence demonstrates a fault or crash but not reliable code execution.

The record

CVE
CVE-2021-44154
Published
Dec 13, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 13, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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