CVE-2017-5590: An incorrect implementation of "XEP-0280: Message Carbons" in multiple XMPP clients allows a remote attacker t

Q: How do I fix CVE-2017-5590?

chatsecure: downgrade or apply the listed mitigation; zom: upgrade to newer than 1.0.11. Exact commands for each OS are on this page.

Q: Is CVE-2017-5590 being exploited?

CVE-2017-5590 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-5590 affect?

CVE-2017-5590 affects chatsecure, zom. Severity is medium (CVSS 5.9). 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 engin

Q: How urgent is CVE-2017-5590?

Priority 44/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.9REMOTEDOWNGRADEUPGRADE

CVE-2017-5590 is a medium-severity flaw (CVSS 5.9) affecting chatsecure, zom. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 ChatSecure (3.2.0 - 4.0.0; only iOS) and Zom (all versions up to 1.0.11; only iOS).

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-20, CWE-346
Published	2017-02-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: chatsecure · zom

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-02-09 20:59 UTCPublished CVE record published
2026-06-17 01:20 UTCUpdated Record last modified

chatsecure chatsecure DOWNGRADE

Affected: 3.2.0 · 3.2.1 · 3.2.2 · 3.2.3 · 4.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2.0

1. Check installed version

apt-cache policy chatsecure || rpm -q chatsecure || chatsecure --version

2. No fixed release: DOWNGRADE to a release before 3.2.0 (Debian / Ubuntu)

apt-cache madison chatsecure sudo apt install chatsecure=<VERSION_BEFORE_3.2.0> sudo apt-mark hold chatsecure

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list chatsecure sudo dnf downgrade chatsecure-<VERSION_BEFORE_3.2.0> sudo dnf versionlock add chatsecure

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

zom zom UPGRADE

Affected: <= 1.0.11

Fixed in: newer than 1.0.11

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zom || rpm -q zom || zom --version

2. UPGRADE to newer than 1.0.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zom

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zom

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-5590?

chatsecure: downgrade or apply the listed mitigation; zom: upgrade to newer than 1.0.11. Exact commands for each OS are on this page.

Is CVE-2017-5590 being exploited?

CVE-2017-5590 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-5590 affect?

CVE-2017-5590 affects chatsecure, zom. Severity is medium (CVSS 5.9). 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 engin

How urgent is CVE-2017-5590?

Priority 44/100. Public exploit reference; Remotely exploitable, no login, no user action

Software pages

iOS vulnerabilities

References

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