Product by Ubuntu

    Glibc

    13 known vulnerabilities in Glibc (Ubuntu), 0 of them actively exploited (CISA KEV).

    Key figures

    13

    Vulnerabilities

    0

    Actively exploited (KEV)

    0

    Used by ransomware

    1

    Critical

    Vulnerabilities

    Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.

    Vulnerabilities in Glibc (Ubuntu)
    HighCVE-2026-4046

    iconv crash due to assertion failure with untrusted input

    also in 7 other products

    7.5
    HighCVE-2026-19499

    Buffer overflow in strfmon and strfmon_l right-justification padding

    also in 1 other product

    7.7
    MediumCVE-2026-80489

    EUC_JISX0213 decoding may hang on crafted input

    also in 1 other product

    5.9
    MediumCVE-2026-77117

    SHIFT_JISX0213 decoding may hang on crafted input

    also in 1 other product

    5.9
    HighCVE-2026-5435

    Potential buffer overflow in ns_sprintrrf TSIG handling path

    also in 4 other products

    8.6
    HighCVE-2026-5928

    Potential buffer under-read in ungetwc

    also in 5 other products

    7.5
    MediumCVE-2026-6791

    Potential stack-based buffer clash during tilde expansion in wordexp

    also in 1 other product

    —
    MediumCVE-2026-19542

    Stack-based out-of-bounds write in tdelete during tree rebalancing

    also in 1 other product

    5.6
    MediumCVE-2026-6238

    Buffer overread in ns_printrrf with corrupted RDATA field

    also in 4 other products

    6.5
    HighCVE-2026-4437

    gethostbyaddr and gethostbyaddr_r may incorrectly handle DNS response

    also in 4 other products

    5.9
    MediumCVE-2026-4438

    gethostbyaddr and gethostbyaddr_r return invalid DNS hostnames

    also in 4 other products

    5.9
    CriticalCVE-2026-5450

    scanf %mc off-by-one heap buffer overflow

    also in 8 other products

    3.1
    LowCVE-2026-6368

    wordexp with WRDE_APPEND can return or use invalid memory

    also in 1 other product

    —

    All products by Ubuntu