CVE-2017-17688: apple mail
Vulnerability summary
CVE-2017-17688 is a medium (CVSS 5.9) vulnerability in apple mail. EPSS estimates a 5.55% chance of exploitation in the next 30 days, higher than 92.7% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 16-05-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
5.55%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
-0.11 pp
From 5.66% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (efail.de)
Maturity: unknown
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Apple1 product
- mailna
Bloop1 product
- airmailna
Debian1 product
- enigmail< 2:2.0.6.1-4
Emclient1 product
- emclientna
Flipdogsolutions1 product
Freron1 product
- mailmatena
Horde1 product
Microsoft1 product
- outlook2007
Mozilla1 product
Postbox-inc1 product
- postboxna
R2mail21 product
- r2mail2na
Roundcube1 product
- webmailna
Ubuntu1 product
- enigmail< 2:2.0.8-1~ubuntu0.16.04.2
13 vendors · 13 products
