Known vulnerabilities in Firefox ESR - page 61

Vendor: Mozilla
Software: Firefox ESR
Software CPE: cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Total vulnerabilities: 1403
Public exploits: 31
Known exploited (KEV): 13

Breakdown by Severity Chart

Severity distribution of vulnerabilities affecting Firefox ESR Firefox ESR is affected by 1403 known vulnerabilities: 11 critical, 644 high, 459 medium, 289 low Critical High Medium Low

Vulnerabilities (1403)

Vulnerability CWE-ID CSH Severity Public Exploit KEV First fixed release Published Bulletins
#VU158171 - Improper isolation or compartmentalization
CVE-2026-117959
CWE-653 Medium
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158172 - Insufficient Verification of Data Authenticity
CVE-2026-117960
CWE-345 Low
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158173 - Improper Check for Unusual or Exceptional Conditions
CVE-2026-117961
CWE-754 Low
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158174 - Improper Check for Unusual or Exceptional Conditions
CVE-2026-117962
CWE-754 High
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158175 - Improper Check for Unusual or Exceptional Conditions
CVE-2026-117963
CWE-754 Low
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158176 - Use After Free
CVE-2026-117964
CWE-416 High
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158177 - Origin Validation Error
CVE-2026-117965
CWE-346 Medium
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158178 - Protection Mechanism Failure
CVE-2026-117967
CWE-693 Low
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158163 - Use After Free
CVE-2026-117940
CWE-416 High
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158166 - Use After Free
CVE-2026-117953
CWE-416 High
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158167 - Incorrect Calculation
CVE-2026-117955
CWE-682 Low
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158168 - Memory corruption
CVE-2026-117956
CWE-119 Medium
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158169 - Cryptographic Issues
CVE-2026-117957
CWE-310 Medium
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158141 - Origin Validation Error
CVE-2026-117860
CWE-346 Medium
No
No
153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158131 - Use of Uninitialized Resource
CVE-2026-117952
CWE-908 Medium
No
No
115.44.0, 153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158133 - Protection Mechanism Failure
CVE-2026-117966
CWE-693 Medium
No
No
115.44.0, 153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158134 - Use After Free
CVE-2026-117968
CWE-416 Medium
No
No
115.44.0, 153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158124 - Use After Free
CVE-2026-117943
CWE-416 Medium
No
No
115.44.0, 153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU158121 - Use After Free
CVE-2026-117939
CWE-416 Medium
No
No
115.44.0, 153.6.0 27.10.2026 SB2026102801
SB20261029163
SB2026110113
and 1 more
#VU152839 - Improper Privilege Management
CVE-2026-100801
CWE-269 Medium
No
No
153.6.0 29.09.2026 SB2026100142
SB20261007246
SB20261007247
and 23 more


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