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🛡️ CVE-2024-26015 — fortios

🟢 CVSS 3.4 — Low ✅ No Known Exploit CWE-1389 NVD
3.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An incorrect parsing of numbers with different radices vulnerability [CWE-1389] in FortiProxy version 7.4.3 and below, version 7.2.10 and below, version 7.0.17 and below and FortiOS version 7.4.3 and below, version 7.2.8 and below, version 7.0.15 and below IP address validation feature may permit an unauthenticated attacker to bypass the IP blocklist via crafted requests.

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality none, integrity low, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

  • Attack vector: Adjacent network — the attacker has to sit on the same local or logical network.
  • Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Changed — a successful attack reaches components beyond the vulnerable one.
  • Confidentiality impact: None.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: None.

Weakness class

CVE-2024-26015 is classified as CWE-1389: Incorrect Parsing of Numbers with Different Radices. The product parses numeric input assuming base 10 (decimal) values, but it does not account for inputs that use a different base number (radix).

Affected software

CVE-2024-26015 is recorded against 2 packages.

  • fortios (from 7.4.0 up to 7.4.3)
  • fortiproxy (from 7.0.0 up to 7.4.3)

Timeline and source

Published on 9 July 2024 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

fortiguard.fortinet.com
fortiguard.fortinet.com

Other advisories for this package

fortios has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-1389: Incorrect Parsing of Numbers with Different Radices) in other software:

Details

Severity LOW
CVSS Score 3.4
CVSS Vector CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
CWE CWE-1389
Public Exploit ✅ No
Source NVD
Published 2024-07-09
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
fortios 7.4.0 7.4.3
fortiproxy 7.0.0 7.4.3

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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