Seamonkey vulnerabilitiesAnd the versions its exploited flaws hit.

Product1 known exploited100 versions
The short answer

Seamonkey is made by Mozilla. We track 707 published vulnerabilities in it, across 100 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 6 October 2025. If you run Seamonkey, check your version against the exploited flaws below and patch those first.

Check your version

The most recent Seamonkey flaw added to the known-exploited list is CVE-2010-3765, on 6 October 2025. We keep watching the known-exploited list.

Versions

Which versions of Seamonkey do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.

  • CVE-2010-3765Exploited list, 6 Oct 2025

    Mozilla Multiple Products Remote Code Execution Vulnerability

    2.0-alpha_12.0-alpha_22.0-alpha_32.0-beta_12.0-beta_22.0-rc12.0-rc22.0
Known exploited

Which Seamonkey vulnerabilities are being exploited?

1 flaw is on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.

  1. 9.8
    CVE-2010-3765CriticalKnown exploited
    Mozilla Multiple Products Remote Code Execution Vulnerability

    Mozilla Firefox, SeaMonkey, and Thunderbird contain an unspecified vulnerability when JavaScript is enabled.

    Chance of use83%Known exploited since6 Oct 2025
Exploit likelihood

Which Seamonkey flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. >99%

    The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct...

    CVSS3.7Published21 May 2015
  2. 84%

    The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in...

    CVSS5.9Published15 Mar 2013
  3. 84%

    Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allow remote attackers to bypass the popup blocker via unspecified vectors.

    CVSS9.8Published19 Mar 2014
  4. 83%
    CVE-2010-3765CriticalKnown exploited

    Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x before 2.0.10, when JavaScript is enabled, allows remote attackers to execute...

    CVSS9.8Published28 Oct 2010
  5. 82%

    The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allows remote attackers to execute arbitrary JavaScript code with chrome...

    CVSS9.8Published19 Mar 2014
  6. 79%

    Mozilla Firefox 1.5 before 1.5.0.5 and SeaMonkey before 1.0.3 allows remote attackers to execute arbitrary code by changing certain properties of the window navigator object (window.navigator) that are accessed when...

    CVSS7.5Published27 Jul 2006
  7. 76%

    Integer overflow in the Array.reduceRight method in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 allows remote attackers to execute arbitrary code via...

    CVSS10.0Published30 Jun 2011
  8. 74%

    Use-after-free vulnerability in Mozilla Firefox before 3.5.19 and 3.6.x before 3.6.17, and SeaMonkey before 2.0.14, allows remote attackers to execute arbitrary code via vectors related to OBJECT's mChannel.

    CVSS10.0Published7 May 2011
  9. 73%

    Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allow remote...

    CVSS9.3Published13 Jan 2013
  10. 71%

    Mozilla Firefox 1.5, Thunderbird 1.5 if Javascript is enabled in mail, and SeaMonkey before 1.0 might allow remote attackers to execute arbitrary code via the QueryInterface method of the built-in Location and...

    CVSS5.1Published2 Feb 2006
Precursor Intelligence

Running Seamonkey? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

  1. Tell us what you runPick your software from a list, or let us work it out from your website.
  2. We match it to every flawOver 400,000 published flaws, checked against your list.
  3. Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
  4. Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.

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FAQ

Common questions, answered plainly.

Something else? Talk to the team →

We track 707 published vulnerabilities listed under the name Seamonkey, across 100 versions. The most recent Seamonkey flaw added to the known-exploited list is CVE-2010-3765, on 6 October 2025.

1 is on the list of flaws known to be exploited. The most recently added is CVE-2010-3765.

Each flaw names its own versions, usually as ranges. The newest, CVE-2010-3765, affects 2.0-alpha_1, 2.0-alpha_2, 2.0-alpha_3, 2.0-beta_1 and more. The versions for every exploited flaw are listed on this page.

Create a Precursor Intelligence account and track Seamonkey. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.