https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2018-14682.htmlhttps://patchthecve.com/cve/CVE-2018-14682.htmlWed, 17 Jun 2026 01:41:26 +0000HIGH 8.8: An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the TOLOWER() macro for CHM decompression.https://patchthecve.com/cve/CVE-2018-14681.htmlhttps://patchthecve.com/cve/CVE-2018-14681.htmlWed, 17 Jun 2026 01:41:26 +0000HIGH 8.8: An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite.https://patchthecve.com/cve/CVE-2018-14680.htmlhttps://patchthecve.com/cve/CVE-2018-14680.htmlWed, 17 Jun 2026 01:41:25 +0000MEDIUM 6.5: An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. It does not reject blank CHM filenames.https://patchthecve.com/cve/CVE-2018-14679.htmlhttps://patchthecve.com/cve/CVE-2018-14679.htmlWed, 17 Jun 2026 01:41:25 +0000MEDIUM 6.5: An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the CHM PMGI/PMGL chunk number validity checks, which could lead to denial of service (uninitialized data dereference and application crash).