CVE-2017-5591

Exp

An incorrect implementation of "XEP-0280: Message Carbons" in multiple XMPP clients allows a remote attacker to impersonate any user, including contacts, in the vulnerable application's display. This allows for various kinds of social engineering attacks. This CVE is for SleekXMPP up to 1.3.1 and Slixmpp all versions up to 1.2.3, as bundled in poezio (0.8 - 0.10) and other products.

Published: 2017-02-09 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-5591 is rated High Exploit Risk (62.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.26%). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2017-5591

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-5591

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.40% 1.26% +0.86%
2 2026-05-24 0.45% 0.40% -0.05%
3 2025-03-22 — 0.45% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-5591

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2017-5591

GitHub Security Advisory for CVE-2017-5591

GHSA-c35g-jr5f-h83p · Severity: medium · Ecosystem: pip — SleekXMPP and Slixmpp Incorrect Implementation of Message Carbons

OS Trackers for CVE-2017-5591

vendor priority summary link
debian not yet assigned CVE-2017-5591 not yet assigned priority: Debian including 2 source packages (sleekxmpp, slixmpp), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2017-5591
ubuntu medium CVE-2017-5591 medium priority: Ubuntu including 2 source packages (sleekxmpp, slixmpp), 46 status rows across 23 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, questing, trusty, upstream, xenial, yakkety, zesty): not-affected 26, DNE 11, ignored 6, released 2, needed 1. https://ubuntu.com/security/CVE-2017-5591

Affected software / configurations for CVE-2017-5591

Vendor Product Version Raw CPE
sleekxmpp_project sleekxmpp <= 1.3.1 cpe:2.3:a:sleekxmpp_project:sleekxmpp:*:*:*:*:*:*:*:*
slixmpp_project slixmpp <= 1.2.3 cpe:2.3:a:slixmpp_project:slixmpp:*:*:*:*:*:*:*:*
poezio poezio 0.8 cpe:2.3:a:poezio:poezio:0.8:*:*:*:*:*:*:*
poezio poezio 0.8.1 cpe:2.3:a:poezio:poezio:0.8.1:*:*:*:*:*:*:*
poezio poezio 0.9 cpe:2.3:a:poezio:poezio:0.9:*:*:*:*:*:*:*
poezio poezio 0.10 cpe:2.3:a:poezio:poezio:0.10:*:*:*:*:*:*:*

References for CVE-2017-5591

cvelogic Threat Intelligence