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CVE-2026-7828: ultravnc through 1.8.2.2 (inclusive); +1 more affected products
CVE-2026-7828. CVSS 3.1 base score 5.3 (MEDIUM, Source advisory). EPSS 0.01352 (percentile 0.71363), scored 24-Oct-2026.
Affected technology
ultravnc · through 1.8.2.2 (inclusive)
uvnc
UltraVNC · 0 through 1.8.2.2
uvnc
Description’s affected range: through 1.8.2.2
Component: repeater
Function: allocates
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
A remote unauthenticated attacker can trigger the theoretical overflow path by sending a maximally-sized URI in an HTTP request to the repeater HTTP port. Source advisory’s CVSS 3.1 assessment (base score 5.3/10) rates confidentiality and integrity impact as none; availability impact as low.
- CWE
- CWE-190
- CCR priority
- 21.5 /100 (P4)
- CVSS 3.1
- 5.3 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L · Source advisory
- EPSS
- 0.01352 · percentile 0.71339 · 2026-10-25
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-7828.html