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Vulnerability details: VCID-29gr-h2my-rqcs
Vulnerability ID VCID-29gr-h2my-rqcs
Aliases CVE-2017-17688
Summary The OpenPGP specification allows a Cipher Feedback Mode (CFB) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL. NOTE: third parties report that this is a problem in applications that mishandle the Modification Detection Code (MDC) feature or accept an obsolete packet type, not a problem in the OpenPGP specification
Status Disputed
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 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-17688.json
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
epss 0.0165 https://api.first.org/data/v1/epss?cve=CVE-2017-17688
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-2017-17688
cvssv3 5.9 https://nvd.nist.gov/vuln/detail/CVE-2017-17688
Reference id Reference type URL
http://flaked.sockpuppet.org/2018/05/16/a-unified-timeline.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-17688.json
https://api.first.org/data/v1/epss?cve=CVE-2017-17688
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17688
https://efail.de
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.gnupg.org/pipermail/gnupg-users/2018-May/060334.html
https://news.ycombinator.com/item?id=17066419
https://protonmail.com/blog/pgp-vulnerability-efail
https://twitter.com/matthew_d_green/status/995996706457243648
https://www.patreon.com/posts/cybersecurity-15-18814817
https://www.synology.com/support/security/Synology_SA_18_22
http://www.securityfocus.com/bid/104162
http://www.securitytracker.com/id/1040904
1577906 https://bugzilla.redhat.com/show_bug.cgi?id=1577906
898630 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=898630
cpe:2.3:a:apple:mail:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:mail:-:*:*:*:*:*:*:*
cpe:2.3:a:apple:mail:-:*:*:*:*:iphone_os:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:mail:-:*:*:*:*:iphone_os:*:*
cpe:2.3:a:bloop:airmail:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:bloop:airmail:-:*:*:*:*:*:*:*
cpe:2.3:a:emclient:emclient:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:emclient:emclient:-:*:*:*:*:*:*:*
cpe:2.3:a:flipdogsolutions:maildroid:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:flipdogsolutions:maildroid:-:*:*:*:*:*:*:*
cpe:2.3:a:freron:mailmate:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:freron:mailmate:-:*:*:*:*:*:*:*
cpe:2.3:a:horde:horde_imp:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:horde:horde_imp:-:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook:2007:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:microsoft:outlook:2007:*:*:*:*:*:*:*
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:postbox-inc:postbox:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:postbox-inc:postbox:-:*:*:*:*:*:*:*
cpe:2.3:a:r2mail2:r2mail2:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:r2mail2:r2mail2:-:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:roundcube:webmail:-:*:*:*:*:*:*:*
CVE-2017-17688 https://nvd.nist.gov/vuln/detail/CVE-2017-17688
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-17688.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-2017-17688
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-2017-17688
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 0.81246
EPSS Score 0.0165
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T12:54:53.319140+00:00 NVD CVE Status Improver Improve https://cveawg.mitre.org/api/cve/CVE-2017-17688 37.0.0
2025-07-31T09:55:54.734662+00:00 NVD Importer Import https://nvd.nist.gov/vuln/detail/CVE-2017-17688 37.0.0