CVE-2010-5289: Buffer overflow in the Authenticate method in the INCREDISPOOLERLib.Pop ActiveX control in ImSpoolU.dll in Inc

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HIGH 7.5DOWNGRADE

CVE-2010-5289 is a high-severity flaw (CVSS 7.5) affecting incredimail. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the Authenticate method in the INCREDISPOOLERLib.Pop ActiveX control in ImSpoolU.dll in IncrediMail 2.0 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a long string in the first argument.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Weakness	CWE-119
Published	2013-08-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: incredimail

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-08-25 03:27 UTCPublished CVE record published
2026-06-16 23:26 UTCUpdated Record last modified

incredimail incredimail DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison incredimail sudo apt install incredimail=<VERSION_BEFORE_2.0> sudo apt-mark hold incredimail

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

dnf --showduplicates list incredimail sudo dnf downgrade incredimail-<VERSION_BEFORE_2.0> sudo dnf versionlock add incredimail

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: IncrediMail 2.0 - ActiveX (Authenticated) Buffer Overflow (PoC)

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-2010-5289?

incredimail: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2010-5289 being exploited?

CVE-2010-5289 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-2010-5289 affect?

CVE-2010-5289 affects incredimail. Severity is high (CVSS 7.5). Buffer overflow in the Authenticate method in the INCREDISPOOLERLib.Pop ActiveX control in ImSpoolU.dll in IncrediMail 2.0 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact vi

How urgent is CVE-2010-5289?

Priority 52/100. High severity; Public exploit reference

References

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