CVE-2026-12246— Out of bounds stack write with crafted APL RR
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| NLnet Labs | NSD | 4.14.0< 4.14.3 | affected |
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I. Basic Information for CVE-2026-12246
Vulnerability Information
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Vulnerability Title
Out of bounds stack write with crafted APL RR
Source: NVD (National Vulnerability Database)
Vulnerability Description
NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is written to disk, with a maximum of 111 attacker controlled bytes.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NLnet Labs | NSD | 4.14.0 ~ 4.14.3 | - |
II. Public POCs for CVE-2026-12246
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Vendor Advisories for CVE-2026-12246 (1)
- 🔗 https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-12246.txtvendor-advisory
Same Patch Batch · NLnet Labs · 2026-06-25 · 4 CVEs total
| CVE-2026-12245 | Denial of DNS over TLS service by any DoT client | |
| CVE-2026-12490 | Bypass of client certificate verification with transfer over TLS | |
| CVE-2026-12244 | Heap overflow and crash with crafted SVCB RR |
IV. Related Vulnerabilities
Same vendor: NLnet Labs
- CVE-2026-12490
Bypass of client certificate verification with transfer over - CVE-2026-12245
Denial of DNS over TLS service by any DoT client - CVE-2026-12244
Heap overflow and crash with crafted SVCB RR - CVE-2026-10846
Insufficient verification that responses belong to a query - CVE-2026-49235
Routinator crashes on specifically crafted RRDP XML files
Same weakness: CWE-120
- CVE-2026-8247
WatchGuard Firebox admd Out of Bounds Write Vulnerability - CVE-2026-57278
GeoVision GeoWebPlayer Websocket Server connectInfo handler - CVE-2026-57277
GeoVision GeoWebPlayer Websocket Server connectInfo handler - CVE-2026-57276
GeoVision GeoWebPlayer Websocket Server connectInfo handler - CVE-2026-57275
GeoVision GeoWebPlayer Websocket Server connectInfo handler
V. Comments for CVE-2026-12246
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