Remote DoS via receive-side kernel TLS
CVSS score
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EPSS probability
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Risk score
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Published
5 h ago
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
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Source agreement
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Evidence confidence
%63
Short explanation
CVE-2026-101302 is a remotely triggerable Denial of Service (DoS) vulnerability caused by a flaw in receive-side kernel TLS in FreeBSD. An off-by-one bug in the code searching for the inner record type can be triggered by an invalid frame, leading to an underflow and a kernel panic [S0].
A remote TLS 1.3 peer can send a specially crafted record to crash the kernel, resulting in a Denial of Service on affected systems [S0].
What should be done?
- Follow the vendor advisory [S0].
Chain of evidence and sources
CVE-2026-101302, FreeBSD işletim sisteminde çekirdek tarafındaki TLS işlemlerinde bir uzaktan hizmet kesintisi açığıdır.
Geçersiz bir çerçeve, off-by-one hatası yoluyla alt taşmaya ve NULL pointer dereference durumuna neden olarak çekirdek paniği tetikler.
Show the technical text from the sources
TLS 1.3 embeds the actual record type as the last non-zero byte of the decrypted payload, optionally followed by zero padding. The code which searches for the inner record type had an off-by-one bug which could be triggered by an invalid frame, leading to an underflow followed by an unconditional NULL pointer dereference, causing a kernel panic. A remote TLS 1.3 peer can send a specially crafted record to trigger a kernel panic, resulting in a Denial of Service (DoS).
CWE: CWE-193, CWE-476
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-101302 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | freebsd | freebsd | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| The sources have not yet published a verified CVSS metric. | ||||
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-101302 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-101302 weaknesses.
Official Sources and Advisories
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