CVE•Published 2022-08-05•Modified 2026-07-14•1 article on news•6 live references•NVD data
CVE-2022-37434Zlib · Zlib
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
97
Exploit Prediction Scoring System · top 3% of all CVEs
Weaknesses (CWE)
Description
zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).
Timeline
Published 2022-08-05
Modified 2026-07-14
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-2022-37434Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Zlib Zlib"All exposed Zlib Zlib instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Zlib"HTTP body or banner mentions "Zlib" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2022-37434Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2022-37434Censys host search filtered to this CVE id.
grep.app
CVE-2022-37434Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2022-37434GitHub code search for direct mentions.
Google dork
"CVE-2022-37434" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (6)
CVE-2022-374346 repos
RenderKit/openvklC++
Intel(R) Open Volume Kernel Library
Scottcjn/macosx-security-patchesC
Security patches for legacy Mac OS X (Panther, Tiger, Leopard, Snow Leopard)
FairwindsOps/bifGo
Fairwinds Base Image Finder CLI
ghostbyt3/patch-tuesdayPython
Python script that fetches, analyzes, and reports Microsoft Patch Tuesday updates via the MSRC API — with a clean web interface for easy viewing.
andresark/trendai-vision-one-code-security-showcaseDockerfile
Hands-on showcase of every Trend Vision One Artifact Scanner (TMAS) capability — vulnerabilities, secrets, malware, SBOM, and policy evaluation
johnnywale/rustyzipRust
A high-performance, secure file compression library with password protection, written in Rust with Python bindings