Buffer overflow in Siemens Reyrolle 7sr5

CVE-2026-62648

A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The length of the URL component contained in pre-authenticated HTTP messages is not properly validated before appending additional data to it, resulting in an out-of-bounds write condition in memory. This could allow an unauthenticated remote attacker to crash the affected device, causing a reboot and resulting in a denial-of-service condition.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-62648?
CVE-2026-62648 is a high-severity vulnerability in Siemens Reyrolle 7sr5, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2026-09-08.
How severe is CVE-2026-62648?
High severity. CVSS v3 base score is 7.5 out of 10.