CVE-2018-5677
CVE-2018-5677 is a high-severity vulnerability in Foxitsoftware Phantompdf with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 4% (89th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Foxitsoftware Phantompdf
- Published:
- Last modified:
Description
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader before 9.1 and PhantomPDF before 9.1. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of specially crafted pdf files with embedded u3d images. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process, a different vulnerability than CVE-2018-5679 and CVE-2018-5680.
Frequently asked questions
- What is CVE-2018-5677?
- This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader before 9.1 and PhantomPDF before 9.1. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of specially crafted pdf files with embedded u3d images. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process, a different vulnerability than CVE-2018-5679 and CVE-2018-5680.
- How severe is CVE-2018-5677?
- CVE-2018-5677 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-5677 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-5677?
- CVE-2018-5677 primarily affects Foxitsoftware Phantompdf. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-5677?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-5677 published?
- CVE-2018-5677 was published on 2018-05-24 and last updated on 2026-06-17.
References
- http://www.securityfocus.com/bid/104300
- https://srcincite.io/advisories/src-2018-0014/
- https://www.foxitsoftware.com/support/security-bulletins.php
Affected products (2)
- cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:*
- cpe:2.3:a:foxitsoftware:reader:*:*:*:*:*:*:*:*
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- CVE-2021-38572 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows writing to arbitrary files because the…
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- CVE-2021-33793 — Critical (CVSS 9.8): Foxit Reader before 10.1.4 and PhantomPDF before 10.1.4 have an out-of-bounds write because the Cross-Reference table…
- CVE-2020-26539 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 10.1. When there is a multiple interpretation error for…
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