CVE-2021-34758

No production impact via shared-memory access controls

Published Oct 6, 2021 · Updated Nov 7, 2024

Incorrect permission assignment in Cisco RoomOS has no production impact because Cisco determined that the issue is not exploitable. The original report described insufficient access controls on a shared-memory resource that allowed local users to corrupt the segment and trigger a device reload. Cisco's final investigation found that production software cannot reach an exploitable state, so the reported reload scenario does not represent a deployable attack.

CVSS severity0.0
None
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permission assignment in Cisco RoomOS has no production impact because Cisco determined that the issue is not exploitable. The original report described insufficient access controls on a shared-memory resource that allowed local users to corrupt the segment and trigger a device reload. Cisco's final investigation found that production software cannot reach an exploitable state, so the reported reload scenario does not represent a deployable attack.

The record

CVE
CVE-2021-34758
Published
Oct 6, 2021
Updated
Nov 7, 2024
Vendor
ClamAV
Product
Cisco RoomOS
Classifications
CWE-732
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 6, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

ClamAV · Cisco RoomOSversion=n/a

Published CVSS scores

0.0CiscoCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N/E:X/RL:X/RC:X

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource

Public exploit references

No public exploit references are available in this record.

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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