HOMEVULNERABILITIESCVE-2023-36327
CRITICAL

CVE-2023-36327

CWE-190Published: September 1, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Integer Overflow vulnerability in RELIC before commit 421f2e91cf2ba42473d4d54daf24e295679e290e, allows attackers to execute arbitrary code and cause a denial of service in pos argument in bn_get_prime function.

NVD Source

Risk Analysis

RELIC contains an integer overflow vulnerability in the bn_get_prime function that can be leveraged for arbitrary code execution or denial of service. It carries a critical 9.8 CVSS score.

No public exploit is currently known, but the vulnerability is remotely exploitable.

Recommended Action

Update the RELIC library to the version containing the fix in commit 421f2e91cf2ba42473d4d54daf24e295679e290e.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-36327 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

relic_project1 product(s)
relic
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (4)

Quick Facts

CVE IDCVE-2023-36327
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-190
CISA KEVNo
Affected1 vendor(s)
PublishedSep 1, 2023

Related CVEs (CWE-190)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-36327 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.