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    Home»Security»Common Vulnerabilities and Exposures (CVEs)»CVE-2025-2856 – Cisco WebEx Vulnerability – Remote Code Execution

    CVE-2025-2856 – Cisco WebEx Vulnerability – Remote Code Execution

    July 5, 2025

    CVE ID : CVE-2025-2856

    Published : July 5, 2025, 11:15 p.m. | 2 hours, 53 minutes ago

    Description : Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

    Severity: 0.0 | NA

    Visit the link for more details, such as CVSS details, affected products, timeline, and more…

    Source: Read More

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    Previous ArticleCVE-2025-3283 – “Apache Struts Deserialization Remote Code Execution Vulnerability”
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    CVE-2025-4821 – Cloudflare Quiche Congestion Window Overflow

    June 18, 2025

    CVE ID : CVE-2025-4821

    Published : June 18, 2025, 4:15 p.m. | 45 minutes ago

    Description : Impact

    Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support.

    An unauthenticated remote attacker can exploit the vulnerability by first completing a handshake and initiating a congestion-controlled data transfer towards itself. Then, it could manipulate the victim’s congestion control state by sending ACK frames covering a large range of packet numbers (including packet numbers that had never been sent); see RFC 9000 Section 19.3. The victim could grow the congestion window beyond typical expectations and allow more bytes in flight than the path might really support. In extreme cases, the window might grow beyond the limit of the internal variable’s type, leading to an overflow panic.

    Patches

    quiche 0.24.4 is the earliest version containing the fix for this issue.

    Severity: 7.5 | HIGH

    Visit the link for more details, such as CVSS details, affected products, timeline, and more…

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