CVE-2024-40711

criticalpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.904 · 100 %ileexploit · PoCDEEUNLRUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 2 exploits · PoC

Likely / severe?

90.4% (100th) EPSS

CVSS 9.8 · critical

Is it mine?

5 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2024-10-17remediate by 2024-11-07

required action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

EPSS · scored 2026-10-24

Veeam Backup and Replication Deserialization Vulnerability

A deserialization of untrusted data vulnerability with a malicious payload can allow an unauthenticated remote code execution (RCE).

cvss

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

9.9

010

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

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · support@hackerone.comexploitability 3.9 · impact 5.9

v3.19.9criticalAV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USprimaryCWE-269USCWE-284US

exploits (2)

Public proof-of-concept and weaponised exploit code.

realstatus/CVE-2024-40711-ExpCVE-2024-40711-expPoC · poc_in_github
watchtowrlabs/CVE-2024-40711Pre-Auth Exploit for CVE-2024-40711PoC · poc_in_github

affected products (5)

Products and version ranges known to be affected.

Veeam Backup & Replication <12.2.0.334all versionscert_bundDE
Veeam Backup & Replication< 12.2.0.334cert_bundDE
Veeam Backup and Recovery≤ 12.1.2 ≤12.1.2enisa_euvdEU
Veeam Software AG Veeam Backup & Replication≤ 12.1.2.172fstec_bduRU
veeam veeam backup & replication12.0.0.1420 → 12.2.0.334nvdUScpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2024-0359Kwetsbaarheden verholpen in diverse producten van Veeam.NL2024-09-06csaf · ncsc_nlNL
Veeam heeft kwetsbaarheden verholpen in diverse producten, zoals Backup & Replication, ONE, Service Provider Console en Agent.
WID-SEC-W-2024-2058Veeam Backup & Replication: Mehrere SchwachstellenDeutsch2024-09-04csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Veeam Backup & Replication ausnutzen, um Dateien zu manipulieren, erweiterte Rechte zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen und vertrauliche Informationen preiszugeben.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd ncsc_nl NVD CVE.org MITRE

published 2024-09-07modified 2026-08-24

related (3,740)

Related entries.

ID	severity	EPSS	exploitable	published
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CVE-2026-58644US	—OT critical	15.9% (97th)	KEV	2026-07-14
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
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Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
CVE-2026-12569US	critical9.8OT critical	46.0% (99th)	KEV	2026-06-18
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of u…
CVE-2026-45247US	—OT critical	2.08% (81st)	KEV	2026-05-26
Mirasvit Full Page Cache Warmer for Magento 2 before version 1.11.12 contains a PHP object injection vulnerability that allows unauthenticated attackers to achieve remote code exec…

+3735 more

references (6)

External citations — patches, advisories, analysis.

https://cxsecurity.com/cveshow/CVE-2024-40711/cnnvd
https://www.veeam.com/kb4649 cnnvd
https://www.veeam.com/kb4649 enisa_euvd
https://labs.watchtowr.com/veeam-backup-response-rce-with-auth-but-mostly-without-auth-cve-2024-40711-2/ExploitThird Party Advisorynvd
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40711US Government Resourcenvd
https://www.veeam.com/kb4649Vendor Advisorynvd

scry

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