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Vulnerability details: VCID-nu94-urex-sfat
Vulnerability ID VCID-nu94-urex-sfat
Aliases CVE-2025-1017
Summary Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-1017.json
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
epss 0.00238 https://api.first.org/data/v1/epss?cve=CVE-2025-1017
cvssv3.1 9.8 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1926256%2C1935984%2C1935471
ssvc Track https://bugzilla.mozilla.org/buglist.cgi?bug_id=1926256%2C1935984%2C1935471
cvssv3.1 8.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2025-1017
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2025-07
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2025-09
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2025-10
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2025-11
cvssv3.1 9.8 https://www.mozilla.org/security/advisories/mfsa2025-07/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2025-07/
cvssv3.1 9.8 https://www.mozilla.org/security/advisories/mfsa2025-09/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2025-09/
cvssv3.1 9.8 https://www.mozilla.org/security/advisories/mfsa2025-10/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2025-10/
cvssv3.1 9.8 https://www.mozilla.org/security/advisories/mfsa2025-11/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2025-11/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-1017.json
https://api.first.org/data/v1/epss?cve=CVE-2025-1017
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-1017
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2343748 https://bugzilla.redhat.com/show_bug.cgi?id=2343748
buglist.cgi?bug_id=1926256%2C1935984%2C1935471 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1926256%2C1935984%2C1935471
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
CVE-2025-1017 https://nvd.nist.gov/vuln/detail/CVE-2025-1017
mfsa2025-07 https://www.mozilla.org/en-US/security/advisories/mfsa2025-07
mfsa2025-07 https://www.mozilla.org/security/advisories/mfsa2025-07/
mfsa2025-09 https://www.mozilla.org/en-US/security/advisories/mfsa2025-09
mfsa2025-09 https://www.mozilla.org/security/advisories/mfsa2025-09/
mfsa2025-10 https://www.mozilla.org/en-US/security/advisories/mfsa2025-10
mfsa2025-10 https://www.mozilla.org/security/advisories/mfsa2025-10/
mfsa2025-11 https://www.mozilla.org/en-US/security/advisories/mfsa2025-11
mfsa2025-11 https://www.mozilla.org/security/advisories/mfsa2025-11/
RHSA-2025:1066 https://access.redhat.com/errata/RHSA-2025:1066
RHSA-2025:1132 https://access.redhat.com/errata/RHSA-2025:1132
RHSA-2025:1133 https://access.redhat.com/errata/RHSA-2025:1133
RHSA-2025:1135 https://access.redhat.com/errata/RHSA-2025:1135
RHSA-2025:1136 https://access.redhat.com/errata/RHSA-2025:1136
RHSA-2025:1137 https://access.redhat.com/errata/RHSA-2025:1137
RHSA-2025:1138 https://access.redhat.com/errata/RHSA-2025:1138
RHSA-2025:1139 https://access.redhat.com/errata/RHSA-2025:1139
RHSA-2025:1140 https://access.redhat.com/errata/RHSA-2025:1140
RHSA-2025:1184 https://access.redhat.com/errata/RHSA-2025:1184
RHSA-2025:1283 https://access.redhat.com/errata/RHSA-2025:1283
RHSA-2025:1292 https://access.redhat.com/errata/RHSA-2025:1292
RHSA-2025:1317 https://access.redhat.com/errata/RHSA-2025:1317
RHSA-2025:1318 https://access.redhat.com/errata/RHSA-2025:1318
RHSA-2025:1319 https://access.redhat.com/errata/RHSA-2025:1319
RHSA-2025:1339 https://access.redhat.com/errata/RHSA-2025:1339
RHSA-2025:1340 https://access.redhat.com/errata/RHSA-2025:1340
RHSA-2025:1341 https://access.redhat.com/errata/RHSA-2025:1341
RHSA-2025:1348 https://access.redhat.com/errata/RHSA-2025:1348
USN-7263-1 https://usn.ubuntu.com/7263-1/
USN-7663-1 https://usn.ubuntu.com/7663-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-1017.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://bugzilla.mozilla.org/buglist.cgi?bug_id=1926256%2C1935984%2C1935471
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-06T21:05:18Z/ Found at https://bugzilla.mozilla.org/buglist.cgi?bug_id=1926256%2C1935984%2C1935471
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2025-1017
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2025-07/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

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required

unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-06T21:05:18Z/ Found at https://www.mozilla.org/security/advisories/mfsa2025-07/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2025-09/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-06T21:05:18Z/ Found at https://www.mozilla.org/security/advisories/mfsa2025-09/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2025-10/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

low

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required

unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-06T21:05:18Z/ Found at https://www.mozilla.org/security/advisories/mfsa2025-10/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2025-11/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

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none

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none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-06T21:05:18Z/ Found at https://www.mozilla.org/security/advisories/mfsa2025-11/
Exploit Prediction Scoring System (EPSS)
Percentile 0.46852
EPSS Score 0.00238
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:23.229053+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2025/mfsa2025-10.yml 37.0.0