{"cve":{"cve_id":"CVE-2009-0749","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.01553,"epss_percentile":0.71929,"epss_as_of":"2026-06-23","description":"Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.","published_at":"2009-03-02T20:00:00Z","last_modified_at":"2026-06-16T23:05:43.573000Z","cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-416"],"nvd_references":["http://secunia.com/advisories/34201","http://secunia.com/advisories/34259","http://secunia.com/advisories/34035","http://www.securityfocus.com/bid/33873","http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html","http://www.vupen.com/english/advisories/2009/0510","http://optipng.sourceforge.net","http://sourceforge.net/tracker/index.php?func=detail&aid=2582013&group_id=151404&atid=780913","http://secunia.com/advisories/35685","http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html","http://www.openwall.com/lists/oss-security/2009/02/24/2","http://www.openwall.com/lists/oss-security/2009/02/25/4","http://www.gentoo.org/security/en/glsa/glsa-200903-12.xml","https://exchange.xforce.ibmcloud.com/vulnerabilities/48879"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:04:56.771637Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"opensuse","vendor_name":"openSUSE","product_slug":"opensuse","product_name":"opensuse","version_start":"10.3","version_start_inclusive":true,"version_end":"11.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:*"},{"vendor_slug":"optipng-project","vendor_name":"optipng_project","product_slug":"optipng","product_name":"optipng","version_start":null,"version_start_inclusive":null,"version_end":"0.6.2","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:optipng_project:optipng:*:*:*:*:*:*:*:*"},{"vendor_slug":"suse","vendor_name":"SUSE","product_slug":"linux-enterprise","product_name":"linux_enterprise","version_start":"9-11","version_start_inclusive":true,"version_end":"9-11","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:suse:linux_enterprise:9-11:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"http://secunia.com/advisories/34201","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://secunia.com/advisories/34259","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://secunia.com/advisories/34035","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.securityfocus.com/bid/33873","source_type":"MISC","tags":[]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.vupen.com/english/advisories/2009/0510","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://optipng.sourceforge.net","source_type":"MISC","tags":[]},{"url":"http://sourceforge.net/tracker/index.php?func=detail&aid=2582013&group_id=151404&atid=780913","source_type":"MISC","tags":[]},{"url":"http://secunia.com/advisories/35685","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.openwall.com/lists/oss-security/2009/02/24/2","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.openwall.com/lists/oss-security/2009/02/25/4","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.gentoo.org/security/en/glsa/glsa-200903-12.xml","source_type":"MISC","tags":[]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/48879","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2009-03-02T20:00:00Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-24T01:10:55.140393Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-06-24T01:10:55.140393Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-06-24T01:10:55.140393Z","label":"CVSS score revised","source":"nvd"}]}