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CVE-2025-57733VulnerabilityPublished

CVE-2025-57733: JetBrains TeamCity · Command Injection

Affects JetBrains TeamCitySource CVE Database V5

0

Not known to be exploited · CVSS 5.5 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
JetBrains TeamCityAffected
  • =0
Fixed in–

AI-suggested

To mitigate this vulnerability, European organizations should: 1) Immediately upgrade JetBrains TeamCity to version 2025.07.1 or later once available, as this version addresses the SMTP injection flaw. 2) Restrict high-privilege access to TeamCity to only trusted administrators and enforce strong authentication mechanisms such as multi-factor authentication (MFA). 3) Audit and monitor email notification configurations and logs for unusual or unauthorized changes in email content or recipients. 4) Implement network segmentation to limit access to the TeamCity server and its SMTP services, reducing exposure to potential attackers. 5) Educate development and operations teams about the risks of phishing and social engineering attacks that could arise from manipulated CI/CD notifications. 6) Consider deploying email security solutions that can detect and block suspicious or malformed emails originating from internal systems. 7) Regularly review and update security policies related to CI/CD tools and their integrations to ensure timely patching and vulnerability management.

Description

In JetBrains TeamCity before 2025.07.1 sMTP injection was possible allowing modification of email content

References

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