Netpbm up to 10.86.50/11.02.29/11.15.7 icon file winicontopam integer overflow

Summaryinfo

A vulnerability marked as critical has been reported in Netpbm up to 10.86.50/11.02.29/11.15.7. This vulnerability affects the function winicontopam of the component icon file Handler. The manipulation leads to integer overflow. This vulnerability is traded as CVE-2026-120432. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Netpbm up to 10.86.50/11.02.29/11.15.7. It has been rated as critical. This issue affects the function winicontopam of the component icon file Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Netpbm before 10.86.51, 11.02.30, and 11.15.08 contains an integer overflow vulnerability in winicontopam that allows attackers to corrupt heap memory via oversized ICO/CUR dimensions. Attackers can supply a crafted icon file with width or height above 32767, wrapping int16_t loop counters into negative row buffer indices to cause crashes or potential code execution.

It is possible to read the advisory at sourceforge.net. The identification of this vulnerability is CVE-2026-120432 since 11/02/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 10.86.51, 11.02.30 or 11.15.08 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Netpbm

Version

• 10.86.0
• 10.86.1
• 10.86.2
• 10.86.3
• 10.86.4
• 10.86.5
• 10.86.6
• 10.86.7
• 10.86.8
• 10.86.9
• 10.86.10
• 10.86.11
• 10.86.12
• 10.86.13
• 10.86.14
• 10.86.15
• 10.86.16
• 10.86.17
• 10.86.18
• 10.86.19
• 10.86.20
• 10.86.21
• 10.86.22
• 10.86.23
• 10.86.24
• 10.86.25
• 10.86.26
• 10.86.27
• 10.86.28
• 10.86.29
• 10.86.30
• 10.86.31
• 10.86.32
• 10.86.33
• 10.86.34
• 10.86.35
• 10.86.36
• 10.86.37
• 10.86.38
• 10.86.39
• 10.86.40
• 10.86.41
• 10.86.42
• 10.86.43
• 10.86.44
• 10.86.45
• 10.86.46
• 10.86.47
• 10.86.48
• 10.86.49
• 10.86.50
• 11.02.0
• 11.02.1
• 11.02.2
• 11.02.3
• 11.02.4
• 11.02.5
• 11.02.6
• 11.02.7
• 11.02.8
• 11.02.9
• 11.02.10
• 11.02.11
• 11.02.12
• 11.02.13
• 11.02.14
• 11.02.15
• 11.02.16
• 11.02.17
• 11.02.18
• 11.02.19
• 11.02.20
• 11.02.21
• 11.02.22
• 11.02.23
• 11.02.24
• 11.02.25
• 11.02.26
• 11.02.27
• 11.02.28
• 11.02.29
• 11.15.0
• 11.15.1
• 11.15.2
• 11.15.3
• 11.15.4
• 11.15.5
• 11.15.6
• 11.15.7

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