CVE•Published 2026-07-21•Modified 2026-09-04•0 articles on news•4 live references•NVD data

CVE-2026-59847Libssh · Libssh

Vulnerability data via NVD (ingested)

CVSS v3.1

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS percentile

Exploit Prediction Scoring System · top 78% of all CVEs

Weaknesses (CWE)

CWE-253Incorrect Check of Function Return Value CWE-1310Missing Ability to Patch ROM Code

Description

A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-path attacker to modify plaintext on the wire without detection.

Timeline

Published 2026-07-21

Modified 2026-09-04

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-59847

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Libssh Libssh"

All exposed Libssh Libssh instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Libssh"

HTTP body or banner mentions "Libssh" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-59847