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Vendor Risk Score

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Software

Severity
5.5
EPSS
0.04%
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An out-of-bounds read flaw was found in w3m, in the Strnewsize function in Str.c. This issue may allow an attacker to cause a denial of service through a crafted HTML file.

1 / 2
First published (updated )
Severity
5.5
EPSS
0.04%
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An out-of-bounds read flaw was found in w3m, in the growbuftoStr function in indep.c. This issue may allow an attacker to cause a denial of service through a crafted HTML file.

1 / 2
First published (updated )
Severity
7.5
Null Pointer Dereference
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Last updated 25 August 2025

1 / 2
Source: Ubuntu
First published (updated )
Severity
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Last updated 25 August 2025

1 / 2
Source: Ubuntu
First published (updated )
Severity
4.7
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Last updated 25 August 2025

1 / 2
Source: Ubuntu
First published (updated )
Severity
6.5
Input Validation
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

parsetagx.c in w3m before 0.5.3+git20161009 does not properly initialize values, which allows remote attackers to crash the application via a crafted html file, related to a <i> tag.

First published (updated )
Severity
6.5
Input Validation
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

The HTMLtagproc1 function in file.c in w3m before 0.5.3+git20161009 does not properly initialize values, which allows remote attackers to crash the application via a crafted html file, related to <dd> tags.

First published (updated )
Severity
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

There is an out-of-bounds write in checkType located in etc.c in w3m 0.5.3. It can be triggered by sending a crafted HTML file to the w3m binary. It allows an attacker to cause Denial of Service or possibly have unspecified other impact.

First published (updated )
Severity
5.5
EPSS
0.06%
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An out-of-bounds write issue has been discovered in the backspace handling of the checkType() function in etc.c within the W3M application. This vulnerability is triggered by supplying a specially crafted HTML file to the w3m binary. Exploitation of this flaw could lead to application crashes, resulting in a denial of service condition.

1 / 3
Source: Ubuntu
First published (updated )
Severity
8.8
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. The feedtabletag function in w3m doesn't properly validate the value of table span, which allows remote attackers to cause a denial of service (stack and/or heap buffer overflow) and possibly execute arbitrary code via a crafted HTML page.

First published (updated )
Severity
6.5
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) and possibly memory corruption via a crafted HTML page.

First published (updated )
Severity
6.5
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. Infinite recursion vulnerability in w3m allows remote attackers to cause a denial of service via a crafted HTML page.

First published (updated )
Severity
8.8
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. Heap-based buffer overflow in the addMultirowsForm function in w3m allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted HTML page.

First published (updated )
Severity
6.5
Null Pointer Dereference
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
Null Pointer Dereference
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (global buffer overflow and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
Null Pointer Dereference
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
Null Pointer Dereference
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (heap buffer overflow and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
Null Pointer Dereference
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. Infinite recursion vulnerability in w3m allows remote attackers to cause a denial of service via a crafted HTML page.

First published (updated )
Severity
6.5
Null Pointer Dereference
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (infinite loop and resource consumption) via a crafted HTML page.

First published (updated )
Severity
6.5
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (global buffer overflow and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
Null Pointer Dereference
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted HTML page.

First published (updated )
Severity
6.5
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. Infinite recursion vulnerability in w3m allows remote attackers to cause a denial of service via a crafted HTML page.

First published (updated )
Severity
8.8
Integer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. Integer overflow vulnerability in the renderTable function in w3m allows remote attackers to cause a denial of service (OOM) and possibly execute arbitrary code due to bdwgc's bug (CVE-2016-9427) via a crafted HTML page.

First published (updated )
Severity
8.8
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. Heap-based buffer overflow in w3m allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted HTML page.

First published (updated )
Severity
8.8
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. Buffer overflow in the formUpdateBuffer function in w3m allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted HTML page.

First published (updated )
Severity
6.5
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. w3m allows remote attackers to cause a denial of service (memory corruption, segmentation fault, and crash) via a crafted HTML page.

First published (updated )

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