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Out-of-bounds write for some Intel(R) Multi-Buffer Crypto for IPSec within Ring 3: User Applications may allow a denial of service.

5.9MediumCNA
Exploited
No known exploitation
Fix
No fix listed
Who is exposed
Not reported
Published
Last modified
Reference
Last checked
11/100 · provisional
None on Exploit-DB, Metasploit or GitHub

Summary

Out-of-bounds write for some Intel(R) Multi-Buffer Crypto for IPSec within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

cve.now Index

11Pcve.now Index 11 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure?/25Unknown. No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity5.9/10CVSS 5.9
  • No patch5/5No patch listed yet

What would change the score

  • Would score about 66 if added to CISA KEV
  • Would score about 61 if CISA's SSVC rates exploitation active
  • Would score about 33 if advisories confirm default setups are exposed

Check your systems with an agent

Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.

Check whether my systems are affected by CVE-2026-35683 (Out-of-bounds write for some Intel(R) Multi-Buffer Crypto for IPSec within Ring 3: User Applications may allow a denial of service.), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-35683 (entry last updated 2026-11-10):
Affected:
- n/a Intel(R) Multi-Buffer Crypto for IPSec: version range not reported
Fixed versions: none listed yet.
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
CISA KEV: CVE-2026-35683 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-35683 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01512.html
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-35683
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-35683.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • n/a Intel(R) Multi-Buffer Crypto for IPSec

    Version range not reported

Evidence 3

Vendor advisory · 1

Establishes: Affected and fixed versions.

  1. Link

CVE record · 2

Establishes: The identifier and description.

  1. Record
  2. Record

Corrections

None so far.

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