4.3

CVE-2015-1571: fortinet fortios Cryptographic Issues

CVSS: 4.3v2.0MediumModified
Published 10-02-2015Last modified 06-08-2024

Vulnerability summary

CVE-2015-1571 is a medium (CVSS 4.3) Cryptographic Issues vulnerability in fortinet fortios. EPSS estimates a 0.86% chance of exploitation in the next 30 days, higher than 58.1% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
0.86%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference

Timeline

  1. 10-02-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The CAPWAP DTLS protocol implementation in Fortinet FortiOS 5.0 Patch 7 build 4457 uses the same certificate and private key across different customers' installations, which makes it easier for man-in-the-middle attackers to spoof SSL servers by leveraging the Fortinet_Factory certificate and private key. NOTE: FG-IR-15-002 says "The Fortinet_Factory certificate is unique to each device ... An attacker cannot therefore stage a MitM attack.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.86%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

0.00 pp

From 0.86% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.86%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (seclists.org)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (security-assessment.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Fortinet1 product

1 vendor · 1 product

References

3 links