CVE•Published 2026-09-01•Modified 2026-09-08•0 articles on news•4 live references•NVD data
CVE-2026-18743
Vulnerability data via NVD (ingested)
CVSS v3.1
2.5
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS percentile
2
Exploit Prediction Scoring System · top 98% of all CVEs
Weaknesses (CWE)
Description
A flaw was found in popt. This vulnerability allows an attacker to provide specially crafted configuration content to a host, which, when loaded, can lead to a small memory corruption issue. This occurs because of an error in how the `poptConfigFileToString` function reallocates memory for buffers. Successful exploitation could result in heap metadata corruption, potentially causing the affected process to become unavailable (denial of service).
Timeline
Published 2026-09-01
Modified 2026-09-08
External references
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-18743Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-18743Censys host search filtered to this CVE id.
grep.app
CVE-2026-18743Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-18743GitHub code search for direct mentions.
Google dork
"CVE-2026-18743" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-18743 on GitHub.
We haven't classified any articles referencing CVE-2026-18743 yet. The external references above still apply.