CVE Feed

    Dashboard / CVE / CVE-2026-95507

    CVE-2026-95507

    An out-of-bounds read was found in the NC-SI OEM response handler of libslirp. A truncated NC-SI OEM Ethernet frame causes ncsi_rsp_handler_oem() to read up to 4 bytes beyond the supplied packet length and reflect the value into the response sent to the guest, resulting in guest-observable disclosure of adjacent host process memory.

    Published:Sep 22, 2026
    Last Modified:Oct 21, 2026
    EPS:N/A
    EPSS Score:
    CVSS Score:4.3

    Affected Products

    Vendor
    Libslirp Project
    Product
    Libslirp

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2021-3595 (CVSS 3.8) — An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exi…
    CVE-2021-3594 (CVSS 3.8) — An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exi…
    CVE-2021-3592 (CVSS 3.8) — An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exi…
    CVE-2021-3593 (CVSS 3.8) — An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exi…
    CVE-2020-29130 (CVSS 4.3) — slirp.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header d…
    CVE-2020-29129 (CVSS 4.3) — ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header da…
    CVE-2020-10756 (CVSS 6.5) — An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. Thi…
    CVE-2020-1983 (CVSS 7.5) — A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted…
    CVE-2020-8608 (CVSS 5.6) — In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overf…
    CVE-2020-7039 (CVSS 5.6) — tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC …

    References

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High