CVE•Published 2022-12-25•Modified 2026-10-14•1 article on news•6 live references•NVD data
CVE-2022-42898Mit · Kerberos_5
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
94
Exploit Prediction Scoring System · top 6% of all CVEs
Weaknesses (CWE)
Description
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
Timeline
Published 2022-12-25
Modified 2026-10-14
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).
Shodan · vuln tag0 hosts
vuln:CVE-2022-42898Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Mit Kerberos 5"All exposed Mit Kerberos 5 instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Kerberos 5"HTTP body or banner mentions "Kerberos 5" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2022-42898Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2022-42898Censys host search filtered to this CVE id.
grep.app
CVE-2022-42898Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2022-42898GitHub code search for direct mentions.
Google dork
"CVE-2022-42898" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.