Security Vulnerabilities
A vulnerability exists in the QuickJS engine's BigInt string parsing logic (js_bigint_from_string) when attempting to create a BigInt from a string with an excessively large number of digits.
The function calculates the necessary number of bits (n_bits) required to store the BigInt using the formula:
$$\text{n\_bits} = (\text{n\_digits} \times 27 + 7) / 8 \quad (\text{for radix 10})$$
* For large input strings (e.g., $79,536,432$ digits or more for base 10), the intermediate calculation $(\text{n\_digits} \times 27 + 7)$ exceeds the maximum value of a standard signed 32-bit integer, resulting in an Integer Overflow.
* The resulting n_bits value becomes unexpectedly small or even negative due to this wrap-around.
* This flawed n_bits is then used to compute n_limbs, the number of memory "limbs" needed for the BigInt object. Since n_bits is too small, the calculated n_limbs is also significantly underestimated.
* The function proceeds to allocate a JSBigInt object using this underestimated n_limbs.
* When the function later attempts to write the actual BigInt data into the allocated object, the small buffer size is quickly exceeded, leading to a Heap Out-of-Bounds Write as data is written past the end of the allocated r->tab array.
CVSS Score
8.8
EPSS Score
0.0
Published
2025-10-16
A vulnerability exists in the QuickJS engine's BigInt string conversion logic (js_bigint_to_string1) due to an incorrect calculation of the required number of digits, which in turn leads to reading memory past the allocated BigInt structure.
* The function determines the number of characters (n_digits) needed for the string representation by calculating:
$$ \\ \text{n\_digits} = (\text{n\_bits} + \text{log2\_radix} - 1) / \text{log2\_radix}$$
$$$$This formula is off-by-one in certain edge cases when calculating the necessary memory limbs. For instance, a 127-bit BigInt using radix 32 (where $\text{log2\_radix}=5$) is calculated to need $\text{n\_digits}=26$.
* The maximum number of bits actually stored is $\text{n\_bits}=127$, which requires only two 64-bit limbs ($\text{JS\_LIMB\_BITS}=64$).
* The conversion loop iterates $\text{n\_digits}=26$ times, attempting to read 5 bits in each iteration, totaling $26 \times 5 = 130$ bits.
* In the final iterations of the loop, the code attempts to read data that spans two limbs:
C
c = (r->tab[pos] >> shift) | (r->tab[pos + 1] << (JS_LIMB_BITS - shift));
* Since the BigInt was only allocated two limbs, the read operation for r->tab[pos + 1] becomes an Out-of-Bounds Read when pos points to the last valid limb (e.g., $pos=1$).
This vulnerability allows an attacker to cause the engine to read and process data from the memory immediately following the BigInt buffer. This can lead to Information Disclosure of sensitive data stored on the heap adjacent to the BigInt object.
CVSS Score
6.5
EPSS Score
0.0
Published
2025-10-16
A type confusion vulnerability exists in the handling of the string addition (+) operation within the QuickJS engine.
* The code first checks if the left-hand operand is a string.
* It then attempts to convert the right-hand operand to a primitive value using JS_ToPrimitiveFree. This conversion can trigger a callback (e.g., toString or valueOf).
* During this callback, an attacker can modify the type of the left-hand operand in memory, changing it from a string to a different type (e.g., an object or an array).
* The code then proceeds to call JS_ConcatStringInPlace, which still treats the modified left-hand value as a string.
This mismatch between the assumed type (string) and the actual type allows an attacker to control the data structure being processed by the concatenation logic, resulting in a type confusion condition. This can lead to out-of-bounds memory access, potentially resulting in memory corruption and arbitrary code execution in the context of the QuickJS runtime.
CVSS Score
8.8
EPSS Score
0.0
Published
2025-10-16
Mattermost Desktop App versions <=5.13.0 fail to manage modals in the Mattermost Desktop App that stops a user with a server that uses basic authentication from accessing their server which allows an attacker that provides a malicious server to the user to deny use of the Desktop App via having the user configure the malicious server and forcing a modal popup that cannot be closed.
CVSS Score
6.1
EPSS Score
0.0
Published
2025-10-16
A weakness has been identified in GNU Binutils 2.45. The affected element is the function vfinfo of the file ldmisc.c. Executing manipulation can lead to out-of-bounds read. The attack can only be executed locally. The exploit has been made available to the public and could be exploited. This patch is called 16357. It is best practice to apply a patch to resolve this issue.
CVSS Score
3.3
EPSS Score
0.0
Published
2025-10-16
Cross site scripting (XSS) vulnerability in Ultimate PHP Board 2.2.7 via the u_name parameter in lostpassword.php.
CVSS Score
6.1
EPSS Score
0.0
Published
2025-10-16
SQL injection vulnerability in Ultimate PHP Board 2.2.7 via the username field in lostpassword.php.
CVSS Score
6.5
EPSS Score
0.0
Published
2025-10-16
Webmin 2.510 is vulnerable to a Host Header Injection in the password reset functionality (forgot_send.cgi). The reset link sent to users is constructed using the HTTP Host header via get_webmin_email_url(). An attacker can manipulate the Host header to inject a malicious domain into the reset email. If a victim follows the poisoned link, the attacker can intercept the reset token and gain full control of the target account.
CVSS Score
7.1
EPSS Score
0.0
Published
2025-10-16
IBM Sterling B2B Integrator 6.2.0.0 through 6.2.0.5, and 6.2.1.0 and IBM Sterling File Gateway 6.2.0.0 through 6.2.0.5, and 6.2.1.0 stores user credentials in configuration files which can be read by a local user.
CVSS Score
5.5
EPSS Score
0.0
Published
2025-10-16
An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability [CWE-22] in Fortinet FortiDLP Agent's Outlookproxy plugin for Windows 11.5.1 and 11.4.2 through 11.4.6 and 11.3.2 through 11.3.4 and 11.2.0 through 11.2.3 and 11.1.1 through 11.1.2 and 11.0.1 and 10.5.1 and 10.4.0, and 10.3.1 may allow an authenticated attacker to escalate their privilege to LocalService via sending a crafted request to a local listening port.
CVSS Score
5.3
EPSS Score
0.0
Published
2025-10-16