CVE-2023-21406

highpriority · track · 35EPSS 0.003 · 23 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.31% (23rd) EPSS

CVSS 8.8 · high

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

Ariel Harush and Roy Hodir from OTORIO have found a flaw in the AXIS A1001 when communicating over OSDP. A heap-based buffer overflow was found in the pacsiod process which is handling the OSDP communication allowing to write outside of the allocated buffer. By appending invalid data to an OSDP message it was possible to write data beyond the heap allocated buffer. The data written outside the buffer could be used to execute arbitrary code. lease refer to the Axis security advisory for more information, mitigation and affected products and software versions.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedAXIS A1001cisa_csaf_ot
Axis recommends users to update the device software. The latest Axis device software, for AXIS A1001, can be found here.
https://www.axis.com/support/firmware
MitigationAXIS A1001cisa_csaf_ot
Axis has released a patched version for affected devices that fixes the vulnerability.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.07.1highCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · CISA US

v3.17.1highAV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · ENISA EU

v3.17.1highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · product-security@axis.comexploitability 1.6 · impact 5.5

v3.18.1highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-120USCWE-122USCWE-122USCWE-122US

affected products (5)

Products and version ranges known to be affected.

AXIS A1001: <= 1.65.4all versionscisa_csaf_otUS
Axis Communications AXIS A1001≤ 1.65.4cisa_csaf_otUS
Axis Communications AB AXIS A1001 Network Door Controller≤ AXIS OS 1.65.4 or earlierenisa_euvdEU
Axis Communications AXIS A1001≤ 1.65.4fstec_bduRU
axis a1001 firmware≤ 1.65.4nvdUScpe:2.3:o:axis:a1001_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-23-206-01AXIS A10012023-07-25icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd NVD CVE.org MITRE

published 2023-07-25modified 2026-06-17

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+16123 more

references (5)

External citations — patches, advisories, analysis.

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