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Vulnerability details: VCID-z5tc-zwsb-eydp
Vulnerability ID VCID-z5tc-zwsb-eydp
Aliases CVE-2018-12404
Summary A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41.
Status Published
Exploitability 0.5
Weighted Severity 5.3
Risk 2.6
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
System Score Found at
cvssv3 5.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12404.json
epss 0.40309 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.40309 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.40309 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.40309 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.40309 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.40309 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.40309 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.40309 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.43364 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.43364 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.43364 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
epss 0.43364 https://api.first.org/data/v1/epss?cve=CVE-2018-12404
cvssv3 5.9 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2018-12404
cvssv3 5.9 https://nvd.nist.gov/vuln/detail/CVE-2018-12404
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
https://access.redhat.com/errata/RHSA-2019:2237
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12404.json
https://api.first.org/data/v1/epss?cve=CVE-2018-12404
https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12404
https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12404
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
http://www.securityfocus.com/bid/107260
1657913 https://bugzilla.redhat.com/show_bug.cgi?id=1657913
cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*
CVE-2018-12404 https://nvd.nist.gov/vuln/detail/CVE-2018-12404
USN-3850-1 https://usn.ubuntu.com/3850-1/
USN-3850-2 https://usn.ubuntu.com/3850-2/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12404.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

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N 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

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-12404
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:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-12404
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 0.97218
EPSS Score 0.40309
Published At July 31, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:32:35.961799+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.11/main.json 37.0.0