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Vulnerability details: VCID-qw27-v2ut-kyhu
Vulnerability ID VCID-qw27-v2ut-kyhu
Aliases CVE-2017-5388
Summary A STUN server in conjunction with a large number of webkitRTCPeerConnection objects can be used to send large STUN packets in a short period of time due to a lack of rate limiting being applied on e10s systems, allowing for a denial of service attack.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-770 Allocation of Resources Without Limits or Throttling
System Score Found at
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.0128 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
epss 0.01583 https://api.first.org/data/v1/epss?cve=CVE-2017-5388
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2017-5388
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2017-5388
archlinux Critical https://security.archlinux.org/AVG-157
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-01
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2017-5388
https://bugzilla.mozilla.org/show_bug.cgi?id=1281482
https://www.mozilla.org/security/advisories/mfsa2017-01/
http://www.securityfocus.com/bid/95763
http://www.securitytracker.com/id/1037693
ASA-201701-39 https://security.archlinux.org/ASA-201701-39
AVG-157 https://security.archlinux.org/AVG-157
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:*:*:*:*:*:*:*:*
CVE-2017-5388 https://nvd.nist.gov/vuln/detail/CVE-2017-5388
mfsa2017-01 https://www.mozilla.org/en-US/security/advisories/mfsa2017-01
USN-3175-1 https://usn.ubuntu.com/3175-1/
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2017-5388
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-5388
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

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.78801
EPSS Score 0.0128
Published At Sept. 9, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:22.728494+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2017/mfsa2017-01.yml 37.0.0