Vulnerability · CVE-2026-2540
The Micca KE700 system contains flawed resynchronization logic and is vulnerable to replay attacks.
Published Feb 15, 2026 · catalog updated Feb 17, 2026 · Micca Auto Electronics Co., Ltd. Car Alarm System KE700
Last checked Nov 6, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-2540. EPSS is 0.22%. Act only if a listed version of Micca Auto Electronics Co., Ltd. Car Alarm System KE700 is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-2541 · Medium
- CVE-2026-2539 · Medium
- Severity
- High8.4
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.22%
- Remediation
- Advisory link
- Affected products
- vendor Micca Auto Electronics Co., Ltd. Car Alarm System KE700 KE700
The Micca KE700 system contains flawed resynchronization logic and is vulnerable to replay attacks. This attack requires sending two previously captured codes in a specific sequence. As a result, the system can be forced to accept previously used (stale) rolling codes and execute a command. Successful exploitation allows an attacker to clone the alarm key. This grants the attacker unauthorized access to the vehicle to unlock or lock the doors.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Micca Auto Electronics Co., Ltd. Car Alarm System KE700 KE700KE700
How to fix CVE-2026-2540
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
No version range is stored, so an installed version cannot be checked on this page.
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-2540. EPSS is 0.22%. Act only if a listed version of Micca Auto Electronics Co., Ltd. Car Alarm System KE700 is installed.
Which versions are affected?
Compare what you have installed with Micca Auto Electronics Co., Ltd. Car Alarm System KE700 KE700 KE700. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Feb 15, 2026 · EUVD
Detected
The Micca KE700 system contains flawed resynchronization logic and is vulnerable to replay attacks. This attack requires sending two previously captured codes in a specific sequence. As a result, the system can be forced to accept previously used (stale) rolling codes and execute a command. Successful exploitation allows an attacker to clone the alarm key. This grants the attacker unauthorized acc
Feb 17, 2026 · EUVD
Updated
The Micca KE700 system contains flawed resynchronization logic and is vulnerable to replay attacks. This attack requires sending two previously captured codes in a specific sequence. As a result, the system can be forced to accept previously used (stale) rolling codes and execute a command. Successful exploitation allows an attacker to clone the alarm key. This grants the attacker unauthorized acc
Sources
- CVE.orgVulnerability recordCVE-2026-2540
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-2540
30-day exploitation probability 0.22%
first.org - EUVDVulnerability recordEUVD-2026-5831
The Micca KE700 system contains flawed resynchronization logic and is vulnerable to replay attacks. This attack requires sending two previously captured codes in a specific sequence. As a result, the system can be forced to accept previously used (stale) rolling codes and execute
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 6, 2026
- CVE.orgNov 4, 2026
- EUVDNov 3, 2026