CVE-2026-35902Public exploit

RTSP denial of service via Digest failures

Published Apr 27, 2026 · Updated Apr 27, 2026

Denial of service in MERCURY MIPC252W 1.0.5 Build 230306 allows attackers to block RTSP clients via invalid Digest requests. The RTSP service processes repeated failed Digest authentication parameters into a persistent authentication failure state instead of recovering for later requests. Access to the RTSP service without credentials is sufficient, and legitimate clients remain unable to authenticate or obtain camera streams.

CVSS severity6.2
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in MERCURY MIPC252W 1.0.5 Build 230306 allows attackers to block RTSP clients via invalid Digest requests. The RTSP service processes repeated failed Digest authentication parameters into a persistent authentication failure state instead of recovering for later requests. Access to the RTSP service without credentials is sufficient, and legitimate clients remain unable to authenticate or obtain camera streams.

The record

CVE
CVE-2026-35902
Published
Apr 27, 2026
Updated
Apr 27, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-307, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 27, 2026Record 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 vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.2CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
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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